Italian Busiate with Trapanese Pesto | Busiate al Pesto Trapanese
Pesto trapanese is the sauce western Sicily makes when the tomatoes are at their best and nobody wants to light a flame. Almonds, garlic, basil, ripe tomatoes, Pecorino Siciliano and olive oil are worked together raw in a marble mortar, and the only heat in the dish is the water the pasta cooks in. What you put in is exactly what arrives on the plate.
Busiate are the pasta that belongs to it. Made from durum semola and water alone, each piece is rolled around a thin stem until it forms a long open spiral, and that spiral is the reason the dish works. A coarse sauce full of almond grit and tomato pulp slides straight off a smooth shape, but inside the corkscrew of a busiata it is trapped.
The recipe turns on two things: keeping the pesto coarse and cold, and keeping the pasta at the right side of al dente. Everything else is shopping.
Yield: 4 servings. Prep: 45 minutes. Rest: 30 minutes. Cook: 5 minutes. Total: about 1 hour 20 minutes. Difficulty: intermediate. Course: primo piatto. Region: Sicily, Trapani and the western coast.
The Story
Trapani was a working port long before it was anything else, the point where the Sicilian coast came closest to Tunis and where Genoese ships stopped on the run between Liguria and the eastern Mediterranean. The traditional account of this sauce credits those crews. They carried agliata, a pounded garlic and nut paste kept in the galley as a preserve, and Trapanese cooks replaced the walnuts with the almonds growing behind the town and added tomatoes.
Locally the dish is still called pasta cu l agghia, pasta with garlic, which tells you where the emphasis originally sat. The tomato came late and the basil came with it, but the mortar and the garlic and the nuts are the old part. Almonds from the Trapani hinterland and from the Agrigento side of the island are sweeter and more perfumed than most, and they are the ingredient that separates this sauce from anything made elsewhere.
Busiate take their name from the buso, the dried stem used as a rod to form the spiral. The shape is not decorative. Semola and water pasta is stiff and sturdy, and rolling it into a spring gives it a bite and a surface no extruded shape reproduces.
Ingredients
For the busiate
Durum wheat semola rimacinata, 3 1/2 cups (500 g)
Warm water, about 1 cup (240 ml)
Fine sea salt, 1/2 tsp (3 g)
Extra semola for dusting the tray, 2 tbsp (20 g)
For the pesto trapanese
Ripe plum tomatoes, 1 1/4 lb (570 g)
Blanched almonds, 3/4 cup (100 g)
Garlic clove, large, 1
Fresh basil leaves, loosely packed, 1 1/2 cups (30 g)
Pecorino Siciliano, finely grated, 3/4 cup (60 g)
Sicilian extra virgin olive oil, 1/3 cup (80 ml)
Fine sea salt, 1 tsp (6 g)
Freshly ground black pepper, to taste
For cooking and finishing
Water for the pasta, 5 quarts (5 liters)
Coarse sea salt for the water, 2 tbsp (35 g)
Toasted almonds, roughly chopped, 2 tbsp (20 g)
Pecorino Siciliano, grated, 2 tbsp (15 g)
Small basil leaves, 12
Extra virgin olive oil, a thread per plate
Preparation
Step 1
Mix and knead the semola dough. Dissolve the fine salt in the warm water. Tip the semola onto a work surface, make a well, and add about three quarters of the water, drawing the flour in with your fingertips. Add the rest a spoonful at a time only if the dough will not come together. Knead for 8 to 10 minutes, pushing hard with the heel of the hand. Semola dough is far firmer than egg pasta and feels almost too dry at first, but it turns smooth and slightly shiny as the gluten develops.
Step 2
Rest the dough under cover. Wrap it closely and leave it at room temperature for 30 minutes. This is not optional. Durum semola is coarsely milled and hydrates slowly, and dough rolled straight after kneading tears and springs back into a stub. After half an hour the same dough stretches into a thin rope without protest.
Step 3
Roll the ropes. Keep the bulk of the dough covered and work with a piece the size of an egg at a time, because exposed semola dough skins over within minutes. Roll it under flat palms into a rope about 1/8 inch (3 mm) thick and cut it into lengths of about 4 inches (10 cm). Work on a bare wooden surface rather than a floured one, since friction is what lets the rope lengthen evenly.
Step 4
Shape the busiate. Lay a thin wooden skewer diagonally across one length of dough, press lightly, and roll the skewer away from you under an open palm so the dough winds up it in a spiral. Use the whole hand, not the fingers. Slide the spiral off the skewer and set it on a tray dusted with semola, keeping the pieces separated so they do not fuse. Let them dry in open air while you make the sauce.
Step 5
Peel and seed the tomatoes. Score a shallow cross in the base of each tomato, drop them into boiling water for 20 to 30 seconds, and lift them straight into iced water. The skins slip away. Halve them, scoop out the seeds and the watery gel with a teaspoon and discard it. That gel is almost pure water and it is the commonest reason a pesto trapanese ends up thin and pale.
Step 6
Pound the almonds, garlic and basil. Work in a marble mortar if you have one. Crush the garlic with a pinch of the salt first, until it is a smooth paste with no visible pieces, then add the almonds and pound them to a coarse rubble with the grains still visible. Add the basil last, with another pinch of salt, and bruise it rather than grind it. The salt acts as an abrasive and keeps the leaves from smearing and blackening against the stone.
Step 7
Finish the pesto with tomato, cheese and oil. Add the seeded tomato flesh a handful at a time, working it into the paste with the pestle in a circular motion until it breaks down but still shows texture. Stir in the grated Pecorino, then pour in the olive oil in a thin stream while stirring so it is absorbed rather than left floating. Season with the remaining salt and a little pepper and taste. With a food processor, pulse in short bursts and stop while the mixture is still rough. Keep it cool but not refrigerated.
Step 8
Cook the busiate and bring the dish together. Bring the water to a rolling boil and salt it heavily, about 2 tablespoons for 5 quarts, so it tastes distinctly of the sea. Fresh busiate need only 3 to 5 minutes and rise when they are close. Bite one: it should give with a clear resistance at the core. Lift out a mugful of cooking water, drain the pasta and turn it into a wide bowl with the pesto, off any heat at all. Toss firmly for about 30 seconds, adding cooking water a spoonful at a time, until the sauce turns glossy and clings inside every spiral.
Plating
Use warm plates rather than hot ones. The sauce is raw and meant to smell of basil and fresh tomato, and a plate from the warming drawer sharpens the garlic and drives the basil notes off before the dish reaches the table. Plates at about 120°F (50°C) keep the pasta from cooling without altering the sauce.
Lift the busiate into the centre of each plate with tongs, turning them as you set them down so they build into a loose nest with the spirals visible. Do not press them flat or spread them to the rim. Scrape the last of the sauce out of the bowl and spoon it over the top.
Finish with the chopped toasted almonds, a light grating of Pecorino, two or three small basil leaves tucked in rather than laid on top, and a thread of the best olive oil. The almonds are there for contrast: those inside the sauce have softened in the tomato and those on top have not. Serve immediately, because a raw sauce loses its perfume within minutes.
Professional Technique
The defining technique here is the mortar, and the reason is mechanical rather than sentimental. A pestle crushes cell walls slowly under pressure, releasing oils without generating heat. A blade spinning at speed does two things a mortar does not: it warms the mixture, driving off the aromatic compounds in basil and garlic, and it emulsifies the tomato water into the oil, giving a uniform orange cream instead of a sauce with visible almond, tomato and basil. With a machine, chill the bowl, pulse briefly and stop early.
The second is the order of pounding. Garlic goes first because it needs the most work and because reducing it early prevents raw chunks surviving into the sauce. Almonds follow, while the mortar is still dry and they break cleanly. Basil goes third, once there is enough paste to cushion it. Tomato goes last, because the moment liquid enters the mortar the pestle stops crushing and starts stirring.
The third is the emulsion made at the very end, off the heat. Semola pasta sheds a great deal of starch into the cooking water, and that starchy water is what binds the olive oil, the tomato liquid and the grated Pecorino into a sauce that coats rather than separates. Adding it a spoonful at a time while tossing hard builds the bind gradually; adding it all at once simply dilutes the sauce.
Texture and Moisture Control
Moisture control begins at the tomato. Seeded, peeled plum tomatoes carry roughly a third less free water than whole ones, and that difference decides whether the pesto has body. If they are very ripe and still seem wet after seeding, salt the flesh lightly and let it drain in a sieve for ten minutes. What you want is pulp, not juice.
The pasta is the second variable. Fresh semola busiate cook in minutes and go from firm to soft with little warning, and because they are thick and twisted the outside can be done while the core is raw. Bite through the thickest part of a spiral rather than the tail, and drain them fractionally early, since they keep softening while you toss.
The final texture is set in the last thirty seconds. Too little cooking water and the sauce stays grainy and sits in clumps between the spirals; too much and it runs off into the plate. The target is a sauce that visibly coats each piece and leaves only a faint trace when you drag a spoon through the bowl. Because the tomatoes already contribute liquid, start with less water than you think you need.
Professional Mise en Place
Almost everything in this dish can be ready an hour before service, and the last stage takes under a minute. Shape the pasta first, make the sauce second, and put the water on only when the plates are warm.
Equipment and tools
Marble mortar and wooden pestle, or a food processor used sparingly
Thin wooden skewers for shaping, and a bench scraper
Wooden board or an unfloured work surface for rolling the ropes
Tray dusted with semola, kept in a single layer
Wide bowl for the final toss, tongs, mug for the cooking water
Prepared ahead
Busiate shaped up to 3 hours ahead, spread out and left to dry in open air
Almonds toasted and cooled, garnish portion kept separate
Tomatoes peeled and seeded up to 2 hours ahead, kept covered and cool
Pecorino grated close to service, never the day before
Basil picked and kept between damp paper, away from the refrigerator
Service setup
Pesto made no more than 1 hour before service, covered with a film of oil
Pasta water at a rolling boil and salted only when it boils
Plates warm, never hot, waiting on the pass
Cooking water lifted out before the pasta is drained, never after
Garnishes lined up, since the toss and the plating take 60 seconds
Chef Tips
Taste one almond before you commit the bag. Almonds carry a lot of oil and go rancid quietly, and a stale one gives the whole sauce a flat cardboard note that no amount of salt or cheese can lift. Sicilian almonds are worth the premium, being sweeter and more fragrant than the commercial kind.
Rub the mortar with the cut garlic clove before you begin, then use the clove. It seasons the stone and makes the first minute easier. If the garlic is young and fiery, remove the green germ, which carries most of the harshness.
If you cannot make busiate, buy them dried rather than substituting a smooth shape. Failing that use casarecce or fusilli, both of which have twists that hold a coarse sauce. Spaghetti is the shape to avoid, since the sauce slides down it into the bottom of the bowl.
Make the pesto as close to service as you can. It is at its best within the hour, because the basil oxidises and the raw garlic keeps developing in the acid of the tomato. If you must hold it, press film onto the surface and cover it with a thin layer of olive oil.
Common Mistakes
Leaving the seeds and gel in the tomatoes. That liquid is almost pure water and it thins the pesto until it slides off the pasta. Peel, halve and scoop the tomatoes out properly, and drain the flesh if it still looks wet.
Blending the sauce smooth. A uniform orange cream is not pesto trapanese. The character of the dish lives in the visible almond grit and the pieces of tomato, so pound by hand or pulse a processor in short bursts and stop early.
Warming the pesto in a pan. Heat turns the raw garlic acrid, dulls the basil and makes the Pecorino grainy. The pasta brings all the warmth this sauce ever needs, and the final toss happens off the heat entirely.
Under salting the pasta water. Semola pasta carries only a trace of salt in the dough and relies on the cooking water for seasoning, and bland busiate cannot be corrected at the table. Use about 2 tablespoons of coarse salt for 5 quarts.
Draining the pasta before saving the water. Without that starchy water the oil, the tomato liquid and the cheese never bind. Lift a mugful out of the pot before the colander is anywhere near the sink.
Overcooking the busiate. They are thick and twisted, so the surface softens well before the core, and a minute too long turns a springy spiral into a limp one that cannot hold sauce. Bite through the thickest part and drain a shade early.
Wine Pairing
Grillo Sicilia DOC: The local white and the most natural match on the list. Grown across the Trapani hinterland, it has enough body to stand up to the almond and the olive oil without turning heavy, and a saline, faintly bitter finish that follows the Pecorino. Its citrus acidity resets the palate between mouthfuls of raw tomato.
Etna Bianco DOC: Carricante grown on volcanic ash on the other side of the island, taut and high in acid with a smoky mineral edge. That tension is what makes it work: the sauce is rich in nut oil and olive oil, and this wine cuts both cleanly while its herbal note picks up the basil. Serve it cool but not cold, around 54°F (12°C).
Vermentino di Gallura DOCG: From Sardinian granite, and a useful alternative when Sicilian bottles are hard to find. The bitter almond twist on its finish echoes the almonds in the mortar directly, and its saline character handles the generous salting that this dish needs. Firm enough in texture to sit alongside the Pecorino without thinning out.
Cerasuolo di Vittoria DOCG: The red to choose if you want one, and the only Sicilian DOCG. The frappato in the blend brings red cherry fruit and a floral lift that flatters raw tomato, while the nero d avola gives just enough structure. Tannin is low, which matters, since a firm tannin would clash with the acidity of the sauce. Serve it lightly chilled.
Etna Rosso DOC: Nerello mascalese from the volcano, pale and perfumed and closer to a northern red than most people expect from Sicily. Its bright acidity matches the tomato and its fine dusty tannin sits comfortably with the almond. This is the bottle for a version made with very ripe late summer tomatoes and a heavier hand with the garlic.
Storage & Reheating
The pesto keeps refrigerated in an airtight jar for 2 days under a film of olive oil, and it must come back to room temperature before use or the cheese and oil stay seized. It does not keep longer, because raw garlic in an acid medium grows harsher every hour and the basil turns dark. Do not freeze it, since the tomato weeps on thawing and the sauce separates.
Shaped raw busiate hold for a day on a semola dusted tray in the refrigerator, loosely covered, or dry completely on a rack over 2 days and then keep in a paper bag for several weeks. Dried busiate need 8 to 10 minutes in boiling water rather than 3 to 5. They also freeze raw: spread in a single layer, freeze solid, bag, and cook from frozen with an extra minute.
Dressed pasta is the one thing that does not keep, and reheating it in a pan destroys the raw sauce. Refrigerate leftovers for up to a day and eat them cold as a pasta salad, loosened with fresh olive oil and a squeeze of lemon. Treated that way it is genuinely good; warmed through, it is not.
Nutrition
Per serving, based on 4 servings:
Calories: 810 kcal
Total Fat: 36 g
Saturated Fat: 6 g
Trans Fat: 0 g
Unsaturated Fat: 29 g
Cholesterol: 15 mg
Sodium: 890 mg
Total Carbohydrates: 100 g
Fiber: 8 g
Total Sugars: 7 g
Added Sugars: 0 g
Protein: 25 g
Lactose: 0.3 g
Principal micronutrients: vitamin E, vitamin C, magnesium, phosphorus, calcium, potassium, manganese
These figures are estimates. Most of the salt in the cooking water is discarded with the water, and the final sodium depends largely on how mature the Pecorino Siciliano is.
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