ItalianMedium · Warm
Rustic Butternut Squash Crostata
A rustic Italian crostata filled with silky roasted butternut squash, warmly spiced with cinnamon and nutmeg, finished with a crumble of hazelnuts and brown sugar. Unhurried and balanced, as Lorenzo would have it.
Prep
20 min
Cook
1h 10m
Total
1h 30m
Method
1
Preheat the oven to 200C. Halve the butternut squash, rub with 1 tbsp olive-oil, and place cut-side down on a baking tray. Roast 35-40 minutes, until the flesh is completely tender and a knife slides through with no resistance.
2
Scoop the roasted flesh into a food processor and blend until completely smooth. Measure out 500g of puree; set aside to cool slightly.
3
In a large bowl, whisk together the butternut squash puree, heavy cream, white sugar, cinnamon, nutmeg, eggs, and vanilla extract until the mixture is uniform and glossy. Taste and adjust sweetness if needed.
4
In a separate bowl, combine the chopped hazelnuts, brown sugar, and cold cubed butter. Work the butter into the mixture with your fingertips until it resembles coarse, damp sand. Do not overwork — the crumble should remain slightly clumpy. Refrigerate until needed.
5
On a lightly floured surface, roll the shortcrust pastry to a 5mm thickness, dusting with flour as needed. Transfer to a 23cm tart tin, pressing gently into the edges. Trim the overhang and prick the base several times with a fork.
6
Pour the squash filling into the prepared crust and spread evenly with a spatula.
7
Scatter the hazelnut crumble generously over the top, covering the filling in an even layer.
8
Brush the exposed pastry edge with whole milk. Bake in the preheated oven at 180C for 30-35 minutes, until the filling is set at the edges (slight jiggle in the center is fine) and the crumble is golden and fragrant.
9
Remove from the oven and let the crostata cool in the tin on a wire rack for at least 15 minutes — this allows the filling to firm and the flavors to settle.
10
Serve warm or at room temperature, sliced into wedges. A dusting of powdered sugar is optional, if you wish.
Grade pending
Nutri-Score
Estimated nutrition
Grade pending · 100% ingredient coverage
Calories
622
per serving
Calorie-dense · 622 kcal
Protein
10g
Carbs
63g
Fat
39g
VegetarianBalanced Indulgence
Nutri-Score is a general nutritional-balance guide, not medical or dietary advice.
B
Environmental impact
Low impact
A–E · lower is better · includes estimates
kg CO2e
0.6
per serving
BCarbonAEU all-round· carbon sets the grade
Water
0.3m³
Land
35Pt
Runoff
0.08g P
Shortcrust Pastry drives 43% of this recipe’s estimated footprint.
Carbon from Poore & Nemecek 2018; water, land & runoff from Agribalyse — modelled averages for comparing recipes, not a measurement of your groceries.
Flavor Profile
4
Umami
6
Sweet
1
Salty
1
Sour
1
Bitter
3
Spicy
Textures
CrumblySilkyTender
Aromas
EarthyNuttySweetWarm
Kitchen Equipment
Techniques
Safety & Storage
Allergen Warning
This recipe contains milk, eggs, tree nuts (hazelnuts), wheat, and gluten. Verify all ingredients are from uncontaminated sources, especially for customers with severe allergies. Use dedicated equipment and preparation surfaces to prevent cross-contact.
Cross Contamination
Keep hazelnuts and flour separate from other ingredients during preparation. Clean all utensils, bowls, and surfaces that contact allergens before using for allergen-free items. Use separate pastry brushes for egg wash and milk wash.
Handling
When working the cold butter into the hazelnut crumble, use fingertips briefly to avoid melting. Refrigerate crumble if work is interrupted to maintain proper texture and food safety.
Cooking Temperature
Ensure oven reaches 200C for initial squash roasting and 180C for crostata baking. The filling should reach a firm, set consistency at edges with slight center jiggle. Use a calibrated thermometer if concerned about doneness.
Storage
Refrigerate leftover crostata within 2 hours of serving. Store in airtight container at 4C or below for up to 3 days. The dairy (cream, butter, milk) and egg filling require consistent refrigeration.
High Risk Population
Eggs in the filling should be fully cooked. Immunocompromised individuals, pregnant women, young children, and elderly should consume only fully cooked egg products. Avoid serving raw or undercooked filling.
Shelf Life
Crostata is best consumed within 24-48 hours for optimal texture. The dairy and egg filling degrades quality after 3 days. Discard any product showing signs of mold, off-odor, or slimy texture.
Pro Tips
Technique
When preparing the hazelnut crumble, keep your butter cold and work quickly — you want those pieces of butter visible within the sandy mixture. These pockets of fat are what create the beautiful golden, crumbly texture as they melt during baking. If your kitchen runs warm, refrigerate the bowl between pulses.
Substitution
Should hazelnuts be difficult to source, blanched almonds make a fine alternative — their flavor is gentler, so consider adding a teaspoon of cocoa powder to the crumble to echo the earthiness of the hazelnut.
From the chef
In autumn, the trattoria kitchen would fill with the perfume of butternut squash slow-roasting in the evening air. My nonna taught me that a crostata need not be perfect in shape — it must only be honest, with butter in the crust and patience in the filling. This one, with its hazelnut crumble catching the last warmth of the oven, reminds me why I have never chased anything but the quiet pleasure of a thing made well.
TagsItalianDessertTartCrostataButternut SquashHazelnutRusticAutumnTraditionalBakingNutmegCinnamon
AllergensMilkEggsTree NutsWheatGluten
Source: generated · June 13, 2026