Flourless Pistachio Cake

You will love this Italian-inspired Flourless Pistachio Cake. Naturally gluten-free thanks to ground pistachios and a touch of almond flour, it delivers a reliably moist crumb, rich nutty flavour and a slightly dense, satisfying texture. Serve it simply with coffee, or dress it with whipped cream and fresh raspberries for an indulgent dessert.

Why you’ll love this recipe

• Simple to make with straightforward steps — great for bakers of all skill levels.
• Naturally gluten-free without sacrificing texture or flavour.
• Keeps well: you can make it a day ahead and it will remain moist.
• Versatile: serve plain for tea or elevate it with cream and berries for dessert.

Inspiration: This cake was inspired by a memorable pistachio cake enjoyed on the Amalfi Coast. After a few attempts and drawing on similar flourless almond cakes, this version captures that simple, moist charm.

Ingredients and substitutions

See the recipe card below for exact quantities and the full method.

• Eggs: large, free-range, at room temperature; separate whites and yolks.
• Unsalted butter: melted and cooled so you can control the salt level.
• Pistachios: fresh, raw and finely ground (no shells).
• Almond flour: use finely ground blanched almond flour rather than coarse almond meal.
• Caster/superfine sugar: gives a smoother texture; granulated sugar will work if needed.
• Lemon zest: adds a bright citrus lift; orange zest can be substituted.
• Vanilla extract: use pure vanilla for the best flavour.
• Sea salt: a small amount enhances the other flavours.
• Baking powder: a raising agent; not the same as baking soda.

Variations

Swap lemon zest for orange for a gentler citrus note. If you prefer salted butter, omit the additional sea salt in the recipe. You can also add a tablespoon of liqueur such as amaretto or a splash of almond extract for a different flavour profile, but keep amounts small so the pistachio stays central.

How to make the pistachio cake

For best results weigh your ingredients where weights are given. All oven temperatures cited assume a fan-forced oven.

Overview of the method

1. Preheat the oven and prepare an 8-inch (20 cm) springform tin—grease and line the base and sides with baking paper.
2. Melt the butter and set aside to cool slightly.
3. Make the pistachio flour: pulse pistachios with sugar in a food processor until very finely ground; stir a few times to ensure even grinding.
4. Combine dry ingredients in a bowl: ground pistachios and sugar, almond flour, lemon zest, salt and baking powder.
5. Stir in the egg yolks, cooled melted butter and vanilla. The batter will be thick.
6. Whip the egg whites in a clean, grease-free bowl to stiff peaks. Fold half the whites gently into the batter to lighten it, then fold in the remainder being careful not to deflate the mixture.
7. Pour the batter into the prepared tin and bake. After about 35 minutes, cover loosely with foil to prevent over-browning and continue baking until a skewer inserted in the centre comes out clean. Total bake time is roughly 45–50 minutes depending on your oven.
8. Allow the cake to rest in the tin for 10 minutes, then remove the springform sides and let it cool completely on the base before removing the base.
9. Serve dusted with icing sugar or with whipped cream and fresh raspberries.

Tips for success, storage and FAQs

Tips for success

• Room temperature ingredients mix and emulsify better. If eggs are cold, place them in warm (not hot) water for five minutes to bring them to room temperature.
• Be meticulous when separating eggs—any yolk in the whites will prevent them from reaching stiff peaks.
• Use a clean, dry bowl and beaters for whipping egg whites.
• Weigh ingredients for the most consistent results; baking is a precise science.

Storage and make-ahead

The cake keeps at cool room temperature in an airtight container for up to three days. In hot weather, store in the fridge. You can also freeze slices wrapped tightly in cling film and foil for up to two months; thaw at room temperature before serving.

FAQs

Can I make the cake a day ahead? Yes — flavours develop overnight and the cake remains moist.

Can I freeze it? Yes. Wrap individual slices well to avoid freezer burn and thaw before serving.

Serving suggestions

This flourless pistachio cake is versatile and always popular. Serving ideas:

• Dust with icing sugar and serve with coffee or tea for morning or afternoon tea.
• Top with softly whipped cream and fresh raspberries for an elegant dessert.
• Serve with a simple fruit sauce or a spoonful of jam for extra sweetness.
• Pack slices for picnics or bring to a potluck — it travels well when wrapped carefully.
• Gift a whole cake to a friend or neighbour for a thoughtful homemade present.

This pistachio cake is a guaranteed crowd-pleaser. I’d love to hear if you make it.

Alex

Recipe card

Ingredients

• 80 g unsalted butter, melted and cooled
• 220 g pistachios, no shells, finely ground
• 160 g caster/superfine sugar
• 20 g blanched almond flour
• 1½ teaspoons finely grated lemon zest
• 4 large eggs, separated, at room temperature
• 1 teaspoon vanilla extract
• ¼ teaspoon sea salt
• ½ teaspoon baking powder

For serving (optional)

• Dusting of icing/powdered sugar
• Whipped cream
• Fresh raspberries

Instructions

1. Preheat oven to 170°C (340°F) fan-forced. Grease and line an 8-inch (20 cm) springform tin.
2. Melt the butter and let it cool slightly.
3. Pulse the pistachios with the sugar in a small food processor until very finely ground, stirring occasionally.
4. Combine ground pistachios and sugar with the almond flour, lemon zest, salt and baking powder in a large bowl.
5. Add the egg yolks, cooled butter and vanilla to the dry mix and stir until thick and combined.
6. Beat the egg whites in a clean bowl until stiff peaks form. Fold half into the pistachio mixture, then fold in the remainder gently.
7. Pour batter into the prepared tin and bake for about 35 minutes. Loosely cover with foil and bake a further 10–12 minutes or until a skewer comes out clean (total approx. 45–50 minutes).
8. Cool in the tin for 10 minutes, remove the springform sides, then cool completely on the base. Serve dusted with icing sugar or with whipped cream and raspberries.

Notes

1. Pistachios should be raw, unsalted and finely ground for the best texture.
2. The small amount of almond flour adds structure without overwhelming the pistachio flavour.
3. Careful egg separation and a clean bowl are essential for stiff egg whites and proper rise.
4. Store leftovers in an airtight container at cool room temperature for up to three days, or refrigerate in warm climates.
5. Freeze well for up to two months when wrapped tightly; thaw to room temperature before serving.

Nutrition estimate (per serving)

Calories: ~358 kcal | Carbs: ~29 g | Protein: ~10 g | Fat: ~24 g