Hazelnut gelato is a custard-based frozen dessert made with whole milk, cream, egg yolks, and a paste of toasted hazelnuts blended smooth. It churns denser than ice cream and tastes strongly of real nuts — not extract, not flavoring. If you need a make-ahead frozen dessert that holds up well and genuinely impresses, this is a reliable one to have in your repertoire.
The technique that matters
Two things determine whether this gelato turns out well or just okay. First, toast the hazelnuts until they smell deeply nutty and the skins are cracking — under-toasted nuts produce a pale, flat paste that never catches up in flavor no matter how long you churn. Second, temper the egg yolks carefully: pour the hot milk mixture into the yolks slowly and in a thin stream while whisking constantly. Rush that step and you get scrambled eggs in your custard base. The fine-mesh straining step exists precisely to catch any bits that cooked too fast, so don’t skip it even if the mixture looks smooth.
What can go wrong
- Grainy or icy texture after freezing: The custard wasn’t cold enough before churning. It needs to be thoroughly chilled — not just cool to the touch. If you’re making multiple batches, chill each one overnight rather than rushing a second batch in after a few hours.
- Hazelnut paste stays lumpy: Most home blenders need a full 2–3 minutes of continuous blending to get hazelnuts to a true paste. Stop too early and you’ll have gritty flecks throughout. A splash of milk helps, but give the blender time first.
- Gelato freezes rock-hard in the container: Gelato has less fat than ice cream and freezes firmer. Move it from the freezer to the fridge for 10–15 minutes before serving. For large batches stored in wide, shallow containers rather than deep tubs, it softens more evenly.
- Custard smells or tastes eggy: The base cooked at too high a temperature. Low heat and constant stirring are non-negotiable. If you notice the mixture starting to steam heavily, pull it off the heat immediately and keep stirring.
- Weak hazelnut flavor in the finished gelato: Skip the pre-skinned, pre-roasted hazelnuts sold in bags — they’ve lost too much volatile flavor by the time you buy them. Start with raw hazelnuts and toast them yourself. The difference is significant.
Make-ahead notes
The custard base can be made up to two days ahead and kept covered in the fridge — this actually improves the churn because the base is thoroughly cold. Once churned, the gelato keeps well in the freezer for up to two weeks; beyond that it starts to develop ice crystals and the hazelnut flavor dulls. If you’re making a large quantity for a gathering, churn in separate batches rather than doubling the volume in one churn, since overcrowding the ice cream maker slows freezing and produces a softer, less consistent texture. Store finished gelato in wide, shallow containers with a piece of plastic wrap pressed directly onto the surface before sealing — this slows ice crystal formation on top. Skip individual serving cups frozen ahead of time; they crack and the gelato sticks. Scoop to order instead.
Hazelnut Gelato
Equipment
- Ice Cream Maker
- Medium saucepan
- Whisk
- Blender or food processor
- Fine Mesh Sieve
- Mixing Bowl
Ingredients
- 1 ½ cups whole milk preferably organic
- 1 cup heavy cream
- ¾ cup granulated sugar
- 4 large egg yolks free-range, if possible
- 1 cup hazelnuts toasted and skinned
- 1 teaspoon vanilla extract
Instructions
- Prepare Hazelnut Base: In a blender or food processor, add the toasted hazelnuts and blend until a fine paste forms. If necessary, add a small splash of milk to help achieve the desired consistency.
- Make the Custard: In a medium saucepan over medium heat, combine the milk and cream. Heat until just simmering, but do not bring to a boil. Remove from heat and set aside.
- Whisk Egg Yolks: In a mixing bowl, whisk together the sugar and egg yolks until the mixture is pale and slightly thickened.
- Combine Ingredients: Slowly pour the warm milk mixture into the sugar and egg yolk mixture, stirring constantly to prevent curdling. Return the mixture to the saucepan and cook over low heat, stirring constantly, until it thickens slightly and coats the back of a spoon, about 8-10 minutes.
- Infuse Flavor: Stir in the hazelnut paste and vanilla extract into the custard. Mix well to combine. Strain through a fine-mesh sieve into a clean bowl to remove any solid particles.
- Chill and Churn: Let the mixture cool to room temperature, then cover and refrigerate until thoroughly chilled, at least 4 hours or overnight. Once chilled, churn the mixture in an ice cream maker according to the manufacturer's instructions.
Notes
- For an extra smooth texture, ensure all hazelnuts are finely ground.
- To add a unique twist, try adding a splash of Frangelico liqueur during the churning process for a deeper hazelnut flavor.
Nutrition
Frequently asked questions
Can I make this without an ice cream maker?
Not really, and it’s worth being honest about that. Without churning, the custard freezes into a solid block with large ice crystals rather than the smooth, dense texture gelato is known for. If you don’t own a machine, the espresso chocolate semifreddo on this site is a better no-churn option.
How many servings does one batch actually make, and can I double it?
One batch yields about 8 modest scoops — closer to 4–5 generous ones. You can double the custard recipe without any issues, but churn in two separate batches rather than one large one, since most home machines max out around 1.5 quarts and an overloaded bowl churns unevenly.
Do I have to skin the hazelnuts, or can I leave the skins on?
Skin them. Hazelnut skins are bitter, and that bitterness comes through clearly in the finished gelato. After toasting, wrap the hot nuts in a clean kitchen towel for a minute, then rub firmly — most skins come off easily. A few stubborn bits left behind won’t ruin anything, but aim to remove the majority.
Can I use hazelnut butter from the store instead of making the paste myself?
Yes, and it works well for large batches when blending multiple cups of nuts gets tedious. Use a natural hazelnut butter with no added sugar or oil, and match the quantity 1:1 with the hazelnut paste called for in the recipe. Check the label — sweetened versions will throw off the sugar balance in the custard.
Try these next
- Espresso Chocolate Semifreddo
- Roasted Strawberry Ice Cream
- Italian Almond Biscotti
- Tropical Coconut Cardamom Ice Cream