Traditional Italian Tuscan Chestnut and Wheat Lasagne | Lasagne Bastarde della Lunigiana
Updated: Oct 24
Lasagne bastarde are not lasagne in the baked sense at all. There is no oven, no bechamel, no layered ragu. In the Lunigiana, the long valley of the Magra river between the Apennines and the Ligurian sea at the top of Tuscany, the word describes sheets of pasta made from chestnut flour cut with wheat, boiled in salted water and dressed the second they leave the pot. The word bastarde refers to the flour and not to the cook: it is what the valley called a dough that was part sweet chestnut and part grain.
The chestnut gives the sheets a dark tobacco colour, a faint sweetness and a softness that no amount of kneading will turn into the elastic snap of a semola dough. That softness is the whole difficulty and the whole point. The pasta has to be handled gently, boiled briefly and dressed generously, because on its own it is fragile and slightly dry.
The dressing the valley uses most is pesto, pounded in a mortar and loosened with pasta water, with aged pecorino rather than a heavy hand of parmigiano. The basil cuts the sweetness of the chestnut, the pine nuts echo it, and the olive oil does the work the dough cannot do for itself.
Yield: 4 servings. Prep: 30 minutes. Rest: 45 minutes. Cook: 10 minutes. Total: about 1 hour 25 minutes. Difficulty: intermediate. Course: primo piatto. Region: Tuscany, Lunigiana, province of Massa Carrara.
The Story
The Lunigiana lived on chestnuts for most of its recorded history. The valley sits high, wet and stony, wheat struggles there, and until the twentieth century the sweet chestnut was not a seasonal treat but the staple that carried families from October to spring. Nuts were dried for weeks over slow smoky fires in stone huts called metati, then hulled and milled, and the resulting farina dolce, sweet flour, became bread, polenta, fritters, the cake called castagnaccio, and pasta. Chestnut flour from this valley still carries its own protected designation.
Pure chestnut flour makes a dough with no gluten and no strength, so it cracks and dissolves in boiling water. Mixing it with wheat was the practical solution, and the proportion depended on how much wheat a household could afford that year. Lasagne bastarde are the record of that compromise. In the poorest houses the sheets were nearly black with chestnut, in better years paler and easier to roll. The name stuck to the dish rather than to any fixed ratio.
Geography explains the pesto. Lunigiana opens west onto the gulf of La Spezia, and the traffic of salt, oil and basil between the valley and the Ligurian coast has always been heavier than the traffic over the mountains into the rest of Tuscany. The cooking follows the road rather than the border. This is the same valley that gave Italy testaroli, the pancake pasta of Pontremoli, also dressed with pesto, and the two dishes are close relatives in everything but shape.
Ingredients
For the pasta dough
Chestnut flour, sifted, 1 1/4 cups (150 g)
All purpose or type 00 wheat flour, 1 3/4 cups (220 g)
Warm water, about 3/4 cup (180 ml)
Extra virgin olive oil, 1 tbsp (15 ml)
Fine sea salt, 1/2 tsp (3 g)
For the pesto
Small leaf basil, leaves only, 2 packed cups (50 g)
Pine nuts, 3 tbsp (25 g)
Garlic clove, small, 1
Aged pecorino, finely grated, 1/3 cup (35 g)
Parmigiano Reggiano, finely grated, 1/4 cup (25 g)
Extra virgin olive oil, mild and Ligurian if possible, 1/2 cup (120 ml)
Coarse sea salt, 1/2 tsp (3 g)
For boiling and finishing
Water, 5 quarts (4.7 liters)
Coarse sea salt for the water, 2 tbsp (35 g)
Reserved pasta cooking water, about 1/2 cup (120 ml)
Aged pecorino for the table, grated, 2 tbsp (12 g)
Extra virgin olive oil, a thin thread per plate
Freshly ground black pepper, to taste
Preparation
Step 1
Mix the two flours and hydrate the dough. Sift the chestnut flour, which almost always carries small lumps, and combine it with the wheat flour and the salt in a wide bowl. Make a well, add the olive oil and about two thirds of the warm water, and bring the flours in from the edges with your fingers. Add the rest a spoonful at a time. Chestnut flour drinks water unevenly depending on how recently it was milled, so judge by feel: you want a dough that holds together and feels slightly tacky, not one that looks smooth and tight.
Step 2
Knead briefly and rest the dough. Knead for 4 or 5 minutes only. There is very little gluten to develop, since chestnut flour contributes none, and long kneading dries the surface and makes the sheets crack later. Work it until it stops looking shaggy and shows a matt, even, coffee coloured surface. Wrap it tightly and leave it at room temperature for 45 minutes. The rest is not optional: it lets the chestnut starch finish absorbing water, and a dough rolled immediately tears across the middle.
Step 3
Roll the sheets thin but not transparent. Cut the dough into four pieces and keep the ones you are not using covered. Roll each out with a pin on a lightly floured board, or pass it through a machine down to the second thinnest setting, around 1/16 inch (1.5 mm). Do not chase the thinness you would want for tagliatelle. A sheet that is too thin has nothing holding it together, breaks apart in the water, and loses the chestnut flavour along with the body.
Step 4
Cut the lasagne and let them dry a little. Cut the sheets into rough diamonds or squares of about 3 inches (8 cm). They are meant to look hand cut and irregular, so do not reach for a ruler. Lay them in a single layer on a floured cloth and leave them 15 minutes to firm at the surface. Never stack them: chestnut dough is sticky and a stack fuses into a block.
Step 5
Pound the pesto in a mortar. Crush the garlic with the coarse salt first, then add the pine nuts and work them to a paste. Add the basil in three additions, pressing and turning the pestle against the wall of the mortar rather than pounding straight down, which bruises the leaves and turns them black. Work in both cheeses, then trickle in the olive oil while turning, and stop as soon as it is a loose green cream. If you use a blender, chill the bowl and pulse in short bursts.
Step 6
Salt the water properly and loosen the pesto. Bring the water to a rolling boil and add the coarse salt. Chestnut pasta tastes flat if the water is timid, so do not cut this back. While it comes up, put the pesto in a wide warm bowl, not a pan on the heat, and slacken it with two tablespoons of the boiling water. Pesto must never be cooked: heat splits the oil out of it and browns the basil within a minute.
Step 7
Boil the lasagne and read the moment they are done. Slide the pieces in a few at a time so the water never stops moving, and stir once, gently, with a wooden spoon. They need 3 to 4 minutes and they signal readiness by floating and turning slightly glossy at the edges. Chestnut pasta has no al dente bite the way a semola pasta does, so do not wait for resistance that will never arrive. Lift them out with a spider, never poured into a colander.
Step 8
Dress off the heat and emulsify with the water. Move the drained lasagne straight into the bowl of loosened pesto and add a ladle of the reserved cooking water. Fold them with a rubber spatula in wide slow movements, lifting from underneath rather than stirring, until every piece carries a thin even coat and the sauce clings instead of pooling. The starch from the chestnut dough does the binding. Add water a spoonful at a time if it looks tight, and serve at once.
Plating
This is country food and it should not be arranged. Use warm shallow bowls rather than flat plates, because the pasta cools quickly and the sauce tightens as it does. Warm them under hot water and dry them, but do not send them out hot: a very hot bowl keeps cooking the pesto and dulls the basil before the dish reaches the table.
Spoon the lasagne in loosely and let the pieces fall over one another so the dark sheets and the green sauce stay visible as separate things. Do not press them into a neat round. Finish each bowl with a thin thread of olive oil, a little grated pecorino and a turn of black pepper, and put more cheese on the table rather than burying the plate in it. The contrast between the brown pasta and the green pesto is the whole visual argument of the dish, and cheese scattered across the top erases it.
Professional Technique
The controlling variable here is the flour ratio, and it is a structural decision rather than a matter of taste. Chestnut flour has no gluten forming proteins, so every percentage point of it subtracts strength from the dough. At roughly forty percent chestnut to sixty percent wheat, the ratio used here, the sheets hold together through rolling and boiling while still tasting unmistakably of chestnut. Push the chestnut above half and the pieces shed into the water, drop it below a third and you have made brown tagliatelle.
The second technique is hydration by feel rather than by number. Chestnut flour is hygroscopic and its moisture content shifts with age, so the same weight can want two tablespoons more water from a bag open a month. The target is a dough that yields to the thumb and feels barely tacky. Too dry and the sheets crack at the roller, too wet and they tear when lifted. Hold back the last of the water.
Texture and Moisture Control
Chestnut pasta releases far more free starch into the water than a wheat dough, and that starch is what makes the final emulsion possible. The water finishes visibly cloudy, and it should. Reserve half a cup before draining and treat it as an ingredient: added to the pesto it binds the oil and the cheese into a sauce that coats rather than slides.
The point of cooking has to be judged by sight, because there is no bite to test. The pieces float, the surface loses its floury matt look and takes on a faint shine, and the edges soften while the centre still holds. That window lasts about a minute. Beyond it the sheets swell, go pasty and disintegrate at the corners, and nothing recovers them. Since they keep softening in the heat of the dressing bowl, pull them fractionally early.
Heat is the enemy of the sauce even as it is the friend of the pasta. Pesto holds its emulsion and its colour up to about 150°F (65°C) and breaks above it, the oil separating and the basil browning. Dressing in a warm bowl off the heat, with hot pasta water as the only heat source, keeps the sauce inside that window. Never return the dressed pasta to the pan and never hold it warm on a pass.
Professional Mise en Place
Everything except the boiling and the dressing can be done ahead.
Equipment and tools
Marble or stone mortar with a wooden pestle, or a chilled blender bowl
Rolling pin or a pasta machine, plus a floured cloth for laying out the pieces
Wide tall pot, at least 6 quarts, and a spider skimmer
Large warm ceramic bowl for dressing, never a metal pan on heat
Fine sieve for the chestnut flour and a bench scraper
Prepared ahead
Dough mixed, wrapped and rested, up to 4 hours ahead at room temperature
Lasagne cut and laid on a floured cloth, up to 2 hours ahead
Cheeses grated and covered, garlic peeled, pine nuts weighed
Basil picked, washed and dried, wrapped in a cloth in the refrigerator
Pesto pounded up to 3 hours ahead, surface sealed under olive oil
Service setup
Salted water at a rolling boil, tasted before the pasta goes in
Dressing bowl warmed and dried, pesto already slackened with two spoons of water
Ladle of cooking water reserved and standing beside the bowl
Bowls warm but not hot, oil bottle and pepper mill within reach
Pecorino for the table grated at the last moment
Chef Tips
Buy chestnut flour that smells sweet and faintly of smoke, and buy only as much as you will finish. It is high in fat, it turns rancid faster than any wheat flour, and a bag left open for a season tastes sour and slightly bitter in a way no seasoning corrects. Keep it sealed in the freezer.
Sift the chestnut flour every single time. It compacts in the bag into small hard lumps that survive both kneading and rolling, and each one shows up in the finished pasta as a dry gritty spot.
If the dough tears while you roll it, rest it again for ten minutes rather than adding flour. The problem is almost always that the wheat gluten has tightened, not that the dough is wet, and a short rest relaxes it. Adding flour only makes the sheets drier and more brittle.
Taste the pesto against the pasta, not on a spoon. Chestnut is sweet, so a pesto that tastes correctly seasoned alone will read as underpowered on the plate. Push the salt, the garlic and the pecorino further than you would for a wheat pasta, then check again after the cooking water has gone in.
Common Mistakes
Using pure chestnut flour. Without wheat there is no gluten and nothing holds the sheet together, so the lasagne dissolve into the pot and leave brown water and sediment. The dish has always been made with mixed flour, which is what its name records.
Kneading the dough like bread. There is very little gluten to develop and long kneading dries the surface, so the sheets crack at the roller and tear as you cut them. Four or five minutes is enough, and the rest does the remaining work.
Draining the pasta in a colander. The pieces are fragile when hot, and a colander breaks them and throws away the starchy water the sauce needs. Lift them out with a spider and keep a ladle of water back.
Heating the pesto. Pesto put in a pan or tossed into a hot pot splits within a minute, the oil separating and the basil turning brown and bitter. Dress in a warm bowl off the heat.
Overcooking past the float. The window between done and pasty is about a minute and there is no firm bite to warn you. Watch for the float and the change of surface, then pull them at once.
Wine Pairing
Cinque Terre DOC: The closest bottle geographically once you leave the valley, and the most natural partner. Its lean saline profile and cutting citrus acidity lift the fat of the pesto without adding sweetness to a pasta that already has plenty of its own. The stony austerity keeps the chestnut from turning cloying halfway through the bowl.
Riviera Ligure di Ponente Pigato DOC: Pigato is the basil drinker's white. Its herbal, almost marjoram scented note and bitter almond finish run alongside the pesto rather than across it, and the broader body stands up to the pine nuts and the pecorino better than a thin coastal white. Serve it at around 54°F (12°C).
Rossese di Dolceacqua DOC: For a red, this is the answer, and it wants a light chill. Pale, scented of wild strawberry and crushed herbs, it has the acidity to handle the olive oil but not the grip that would clash with a soft sweet pasta. Tannin is the danger with chestnut, and Rossese has almost none.
Chianti Rufina DOCG: The Tuscan option, from the highest and coolest of the Chianti zones, which is why it works where a warmer Sangiovese would not. Sour cherry acidity and fine chalky tannin cut the cheese and the oil, and the savoury undertone picks up the smoke that good chestnut flour carries from the drying huts.
Storage & Reheating
Store the components, never the dressed dish. Raw cut lasagne keep on a floured tray under a cloth, refrigerated, for 24 hours, and they freeze well: freeze them flat and separated first, then bag them, and boil them straight from frozen with one extra minute. Do not let them thaw, since they turn sticky and fuse. The pesto keeps refrigerated in a jar for 3 days with the surface sealed under olive oil, and freezes for 3 months if you leave the cheese out and beat it in after thawing.
Dressed lasagne bastarde do not reheat in any way that respects the dish. Refrigerate leftovers for no more than a day in a sealed container and revive them in a wide pan over low heat with two tablespoons of water, moving them constantly for about a minute until they loosen. Never use a microwave, which heats the oil unevenly and breaks the sauce.
Nutrition
Per serving, based on 4 servings:
Calories: 690 kcal
Total Fat: 39 g
Saturated Fat: 8 g
Trans Fat: 0 g
Unsaturated Fat: 30 g
Cholesterol: 18 mg
Sodium: 720 mg
Total Carbohydrates: 70 g
Fiber: 6 g
Total Sugars: 5 g
Added Sugars: 0 g
Protein: 17 g
Lactose: 0.6 g
Principal micronutrients: manganese, copper, vitamin K, vitamin E, folate, magnesium, calcium, potassium
These figures are estimates. Most of the salt used to boil the pasta goes down the drain, and the final sodium depends mainly on how much pecorino reaches the plate.
Comments