Italian Friulian Nut Swirl Cake with Grappa | Gubana Friulana con Grappa

Sep 29

11 min read

Gubana Friulana con Grappa (Italian Friulian Nut Swirl Cake with Grappa)

Gubana is the festive coiled cake of the Natisone valleys in eastern Friuli: a soft yeasted dough rolled around walnuts, almonds, pine nuts, raisins and candied peel, wound into a snail and glazed with grappa. Cut, it shows a tight spiral of dark filling against pale crumb.

This version keeps every traditional element and gives the grappa a measured job instead of a decorative one.

Yield: 12 slices from one 9 inch (23 cm) coil. Prep: 50 minutes. Steep: 12 hours. Rise and proof: 2 hours 45 minutes. Bake: 50 minutes. Cool: 3 hours. Difficulty: advanced. Course: dessert. Region: Friuli Venezia Giulia.

The Story

Gubana belongs to the Natisone valleys, the green folds of hills above Cividale del Friuli, a few miles from the Slovenian border. The communities on both sides of that line have always shared the cake and argued over it. Its name comes from the Slovenian word guba, a fold, and describes the cake exactly: a sheet of dough folded and wound around its filling. Every village keeps its own recipe, and every recipe is defended at the table. Many families still bake it once a year, for Easter or Christmas, and the method passes from mother to daughter almost unwritten.

The cake is old. Cividale was a Lombard capital and later a trading stop between Venice and central Europe, so sugar, cinnamon and nutmeg arrived early and stayed expensive for centuries. A filling built from nuts, dried fruit and spice was a display of wealth, reserved for Christmas, Easter and weddings. A banquet held in Cividale in 1409 for a visiting pope is often cited as the first written mention, although the evidence is thin and the tradition is certainly older than the document. Everything about the filling reflects that history. Walnuts came from the valley slopes, while almonds, pine nuts, candied orange peel and chocolate had to be bought, and every purchase was a statement about the occasion.

Grappa completes the picture. Friuli is one of the great grappa regions of Italy, and the pomace left after harvest in the Collio and the Colli Orientali has always been distilled on the farm, because nothing in a peasant cellar was wasted. The spirit that reached every kitchen also reached the filling, where it softened the nuts and gave the cake a warmth that water and milk could never supply. It is still poured beside a slice. Friulian distillers later led the move to single grape grappa, but the spirit used in baking was always the plain local one, poured from an unlabelled bottle on the shelf.

Gubana is cut thin and eaten in the afternoon or after a meal, with a small glass of grappa or a sweet Friulian wine. It is a cake for sharing rather than for individual plates, and good bakers make it days ahead, because they know it improves as the filling settles. Serving it warm from the oven is considered a mistake by anyone from the valleys, and a slice left on the plate is taken as a sign that it was made too dry. That patience is what this recipe follows.

Ingredients

For the enriched dough

Bread flour, 3 1/3 cups (420 g)
Instant yeast, 2 1/4 tsp (7 g)
Whole milk, lukewarm at 100°F (38°C), 1/2 cup (120 ml)
Granulated sugar, 1/3 cup (67 g)
Large eggs, 2, plus 2 yolks
Unsalted butter, softened to 65°F (18°C), 7 tbsp (100 g)
Fine sea salt, 1 tsp (6 g)
Lemon zest, from 1 unwaxed lemon
Vanilla extract, 1 tsp (5 ml)

For the grappa steeped fruit

Golden raisins, 3/4 cup (110 g)
Friulian grappa, 1/3 cup (80 ml)

For the nut filling

Shelled walnuts, 7 oz (200 g)
Blanched almonds, 3 1/2 oz (100 g)
Pine nuts, 1/2 cup (65 g)
Dry fine breadcrumbs, 1/2 cup (55 g)
Granulated sugar, 1/2 cup (100 g)
Chestnut or wildflower honey, 2 tbsp (42 g)
Unsalted butter, melted and cooled, 4 tbsp (57 g)
Candied orange peel, chopped, 1/3 cup (50 g)
Dark chocolate, 70 percent, grated, 1 oz (30 g)
Ground cinnamon, 1/2 tsp (1 g)
Egg white, 1
Friulian grappa, 2 tbsp (30 ml)

For finishing

Egg yolk with 1 tbsp (15 ml) milk, for the wash
Granulated sugar, 1 tbsp (13 g)
Friulian grappa, 2 tbsp (30 ml), for brushing
Confectioners sugar, 1 tbsp (8 g)

Preparation

Step 1. Steep the raisins

Seal the raisins and 1/3 cup (80 ml) grappa in a small jar and leave them for 12 hours at room temperature, shaking once or twice. The fruit swells and takes up most of the spirit. Drain through a sieve, pressing lightly, and keep the leftover grappa for brushing the finished cake. Use a glass jar, never a plastic tub, which absorbs the smell of the spirit.

Step 2. Toast and chop the nuts

Toast the walnuts and almonds on separate trays at 325°F (165°C) for 8 to 10 minutes, and the pine nuts for 5, watching them closely because they burn quickly. Cool completely on the tray, because warm nuts release oil when chopped and turn the filling greasy. Chop the walnuts and almonds by hand to coarse gravel, keeping some pieces visible, and leave the pine nuts whole.

Step 3. Mix the dough

Combine the flour, yeast, sugar, lukewarm milk, eggs, yolks, zest and vanilla in the mixer bowl. Mix on low speed for 5 minutes, until no dry flour remains, then add the salt. Knead on medium speed for 8 minutes, until the dough is smooth, elastic and pulls away from the bowl. It will stay soft and slightly tacky, and that is correct.

Step 4. Add the butter and rise

Add the softened butter in four pieces, waiting until each one disappears before adding the next. Continue mixing for about 5 minutes, until the dough turns glossy and stretches into a thin, translucent sheet. Shape it into a ball, cover it and let it rise for about 90 minutes, until doubled.

Step 5. Make the cold filling

In a large bowl combine the nuts, breadcrumbs, sugar, honey, cooled melted butter, candied peel, chocolate, cinnamon, egg white and drained raisins. Mix until the paste holds together. Let it stand until completely cool to the touch, then stir in the 2 tbsp (30 ml) grappa last, until evenly distributed. The paste should hold a firm ridge on the spoon and look moist but never shiny.

Step 6. Roll and fill

Turn the risen dough onto a lightly floured bench and roll it into a 16 by 12 inch (40 by 30 cm) rectangle, 1/8 inch (3 mm) thick. Divide the filling into five or six mounds and spread them out to meet each other, leaving a 1 inch (2.5 cm) border along one long edge. Work quickly so the dough does not dry.

Step 7. Coil and proof

Roll the dough firmly from the filled long edge into a rope, ending on the bare border. Pinch the seam and both ends closed. Coil the rope into a snail in a parchment lined 9 inch (23 cm) pan, tucking the tail underneath and leaving a finger of space between turns. Proof for 75 minutes, until puffy.

Step 8. Bake and brush

Heat the oven to 350°F (175°C). Brush the cake with the yolk and milk wash and sprinkle the sugar over it. Bake for 50 minutes, tenting with foil if it darkens early, until the centre reads 195°F (90°C). Brush at once with the 2 tbsp (30 ml) finishing grappa and the reserved steeping grappa. Cool on a rack for 3 hours, uncovered, before wrapping.

Plating

Serve gubana at room temperature on a wooden board, whole, so the spiral is seen before the knife touches it. Use a long serrated knife, wiped between cuts, and slice wedges about 3/4 inch (2 cm) wide with a slow sawing stroke. Cut from the outside inward so that every wedge carries the full number of turns. Offer the end pieces to whoever asks, since the filling is thickest there.

Lay each wedge on a plain white plate, cut face upward, and dust confectioners sugar through a fine sieve at the last moment. Add two toasted walnut halves. Pour grappa into small tulip glasses at 60°F (16°C) and set one beside each plate. Nothing else belongs on the plate: no cream, no fruit sauce, no ice cream. The spiral is the decoration, and the only contrast it needs is the small glass of spirit.

Professional Technique

The technique that defines this cake is where and when the grappa goes into the nut filling. It goes in last, after every other filling ingredient has been mixed and the paste has cooled completely. Added to a warm filling, the alcohol evaporates within minutes and carries the aromas away with it, leaving only sweetness behind. Cold grappa stays in the paste and travels into the oven with it.

It does two jobs. First, it keeps the filling soft. Grappa and honey hold water in the paste, so the nuts do not dry out and the filling does not turn crumbly against the dough. A gubana made this way stays moist for days, and the crumb next to the filling stales more slowly. Second, it dissolves flavour. The oils and aromatic compounds in walnut, almond and pine nut are soluble in alcohol and barely in water, so the grappa carries them through the whole filling.

The question is quantity. Two tablespoons (30 ml) into about 1 1/2 lb (700 g) of filling is the working amount. Up to 3 tablespoons (45 ml) is possible if you add it a spoonful at a time and stop when the paste still holds a firm ridge on the spoon. Beyond 4 tablespoons (60 ml) the filling slumps, seeps into the dough and escapes from the ends of the spiral, and the layers slide apart when you slice. Test by pressing a spoonful onto a plate: it should keep its shape without leaving a wet ring. If it fails, stir in a tablespoon of breadcrumbs.

Texture and Moisture Control

Three textures have to coexist in every slice: a tender, slightly springy crumb, a dense filling that is moist but not wet, and a thin crust with a soft glaze. Each depends on managing water. The dough is enriched with butter and yolks, which keep it tender, but it is also slack, so use only as much flour on the bench as needed to roll it.

The filling is the moisture reservoir. Honey, butter and grappa give it enough liquid to stay soft, and the breadcrumbs and egg white absorb and bind it so it does not run. If the paste feels wet, add a tablespoon of breadcrumbs rather than baking longer. Rolling the rope firmly closes air pockets, and leaving a small gap between the turns of the coil lets the cake expand without splitting.

Baking to 195°F (90°C) sets the crumb without drying it. The grappa brushed on the hot crust is absorbed as the cake cools, and the crust softens slightly. Resting for 3 hours lets moisture even out between filling and dough, and it firms the paste enough to slice cleanly. Never refrigerate the whole cake, because the cold turns the butter in the filling hard and the crumb dry.

Professional Mise en Place

Equipment and tools

Stand mixer with a dough hook, and a jar for the steep
Two trays for toasting, a 9 inch (23 cm) pan and parchment
Offset spatula, bench scraper and a soft pastry brush
Instant read thermometer and a long serrated knife
Wire rack large enough to cool the cake flat

Prepared ahead

Raisins steeped up to 5 days ahead, sealed at room temperature
Nuts toasted and chopped up to 2 days ahead, stored airtight
Filling mixed without grappa a day ahead, grappa added cold on baking day
Butter cut and left out for 1 hour before mixing
Egg wash mixed and covered, candied peel chopped, chocolate grated

Service setup

Cake at room temperature, uncut, on a board
Confectioners sugar in a fine sieve, dusted to order
Grappa glasses filled once the plates are down
Warm damp cloth for wiping the knife
Tulip glasses for the grappa, kept at room temperature
Toasted walnut halves in a small dish for the plate

Chef Tips

Divide the filling into five or six mounds across the dough before spreading. A single heap leaves the centre thick and the edges bare, and an uneven layer makes the spiral separate when cut.

Bake the cake the day before. The filling relaxes overnight and the grappa settles into the crumb, while a cake sliced two hours out of the oven tastes ordinary.

Taste the walnuts before starting. Stale walnuts taste of paint and no grappa hides it. Buy them from a shop with quick turnover and toast them the same day. Keep the pine nuts apart, since they scorch first and taste bitter.

Weigh the dough and the filling if you have a scale. A filling that is too heavy for the dough bursts the spiral, and roughly 1 1/2 lb (700 g) of filling to 1 3/4 lb (800 g) of dough is the balance this recipe uses.

Wrap the cake only after it is completely cold, so it does not sweat and soften the crust. A cake wrapped warm loses the thin crisp shell that contrasts with the soft crumb.

Common Mistakes

Adding grappa to a warm filling. The alcohol and its aromas evaporate before the cake reaches the oven. Cool the paste completely first, and add the grappa last.

Pouring in too much grappa. Past 3 to 4 tablespoons the filling slumps and leaks from the spiral. Add it gradually and test the paste on a spoon.

Grinding the nuts to powder. It releases oil and makes the filling greasy and dark. Chop to coarse gravel.

Adding butter too early. It coats the gluten and the dough cannot hold a coil. Build structure first.

Cutting the cake warm. The filling has not set and the knife smears the spiral. Wait at least 3 hours, or overnight.

Brushing grappa on a cold cake. It beads on the surface and wipes off on the first hand that touches it. Brush within minutes of leaving the oven, while the crust is hot.

Rolling the rope too tightly. Filling squeezes out of both ends during proof and the centre turns doughy. Roll firmly but leave room to expand.

Wine Pairing

Colli Orientali del Friuli Picolit DOCG: The local sweet wine, and the closest match. Its honey, acacia and dried apricot notes echo the honey in the filling, while a fine acidity keeps the richness of the nuts from becoming heavy. Serve well chilled in small glasses, around 50°F (10°C), so the sweetness stays lifted and does not turn syrupy against the crumb.

Ramandolo DOCG: Made from Verduzzo grapes on the hills near Nimis, it adds tannin and a bitter almond edge that mirror the walnuts and almonds. Its amber sweetness meets the candied peel and holds up against the grappa glaze. A good choice when the cake has rested a couple of days and the filling has softened. Serve it lightly chilled.

Vin Santo del Chianti Classico DOC: An oxidative sweet wine with hazelnut, caramel and dried fig aromas that lengthen the toasted nut character of the filling. Its medium body suits the dense crumb, and its acidity clears the palate between slices. Look for a bottle with some age, which adds a dried fruit depth that sits well beside the candied peel. Serve it at cellar temperature, in small glasses, never ice cold.

Marsala DOC: Choose a semi dry Superiore. Its roasted almond, tobacco and raisin notes join the steeped fruit and the chocolate, and its fortified warmth matches the grappa without competing with it. Serve slightly cool, around 60°F (16°C). Avoid the sweet Dolce style, which would flatten the cake.

Storage & Reheating

Wrap the cold cake tightly and keep it at room temperature for up to 5 days. It is better on day two and holds well for the week. Avoid the refrigerator, where the crumb dries and the filling hardens. Keep a cut cake cut side down on a board, covered with a bowl. The filling is the most perishable part, so never leave a cut cake uncovered in a warm room.

For longer storage, freeze whole or in wrapped slices for up to 2 months and thaw overnight, still wrapped. To refresh a slice, warm it in a 300°F (150°C) oven for 8 minutes, then let it stand for 5 minutes before eating. Do not use a microwave, which dries the crumb and makes the filling gummy. Never reheat the whole cake, only what you will eat.