Flourless Chocolate Cake (Naturally Gluten-Free)
This chocolate cake doesn’t mess around. It is exactly what it’s name implies; a Divine Chocolate Cake Without flour. It’s texture is soft, light and everything I am looking for in a cake, yet it somehow manages to be completely gluten free.
QUICK RECIPE SUMMARY
Prep Time: 20 mins | Bake Time: 40 mins | Servings: 10–12
Dietary Info: Naturally Gluten-Free, Flourless, Vegetarian
The Vibe: A rich cross between a fudgy brownie and an elegant European torte. No expensive specialty flour blend or xanthan gum required!
This is the kind of cake that makes people stop mid-bite. It is deeply chocolatey, rich, and fudgy, with toasted hazelnuts adding a beautiful warmth and subtle crunch.
The best part? It’s naturally flourless. We are letting nuts, fresh eggs, butter, and rich dark chocolate do all the heavy lifting here. If you love extra dark chocolate as much as I do—it is literally my favorite everyday snack—this torte is about to become your go-to crowd-pleaser.
And because we like keeping things extra without extra work, this whole beauty comes together with simple pantry staples!

Why This Flourless Chocolate Cake Recipe Works
Most gluten-free cakes rely on store-bought flour blends that can leave behind a gritty texture or strange aftertaste. Here is why this recipe ranks at the top of my personal favorites:
- Naturally Gluten-Free: Almond flour and ground hazelnuts provide all the structure you need without any gums or starches.
- Brownie-Meets-Torte Texture: Whipped egg whites give just enough lift to balance out the dense, decadent dark chocolate base.
- Sophisticated Flavor Profile: Hazelnut and chocolate are a match made in heaven (think adult Nutella), elevated with a touch of warm cinnamon and vanilla.
- Dinner Party Ready: It looks like it came straight out of a European bakery, but it requires minimal active prep time. If you love serving easy fancy desserts at gatherings, this one is an absolute winner.

Ingredients You’ll Need
Here is what you’ll need to grab from your pantry:
- Hazelnuts (200 g / 1½ cups): Whole, blanched, or raw. We’ll pulse them fresh for the best oil content and flavor.
- Almond Flour (150 g / 1½ cups): Fine almond flour works best here to combine with the hazelnut meal.
- Dark Chocolate (200 g / 7 oz): Pick a quality dark chocolate (around 60% to 70% cocoa solids).
- Unsalted Butter (250 g / 1 cup + 2 tbsp): Cut into cubes for quick melting.
- Large Eggs (5): Separated into yolks and whites. Make sure they are at room temperature!
- Granulated Sugar (200 g / 1 cup): Divided into the batter for sweetness and structure.
- Ground Cinnamon (1 tsp) & Vanilla Powder (1 tsp or 2 tsp extract): Cinnamon adds an unforgettable background warmth. (I love experimenting with homemade spice blends in baking to bring out deeper cacao notes!).
- For the Glaze: Powdered sugar (120 g / 1 cup), cocoa powder (2–3 tbsp), and cold water.
PRO TIP: DON’T OVER-PROCESS THE NUTS
When grinding your hazelnuts in the food processor, pulse in short 2-second bursts. You are looking for the texture of coarse sand. If you run the processor continuously, the oils will release and turn your nuts into hazelnut butter!

Step-by-Step Instructions
Step 1: Prep the Oven & Pan
Preheat your oven to 350°F (175°C). Line an 8-inch round springform or cake pan with parchment paper, allowing it to come slightly up the sides. Lightly grease the parchment with butter.
Step 2: Grind the Hazelnuts
Pulse your whole hazelnuts in a food processor until finely ground. Set aside with your almond flour.
Step 3: Melt Chocolate & Butter
Set a heatproof bowl over a pot of gently simmering water (a double boiler). Add the chopped dark chocolate and butter. Stir occasionally until completely smooth and melted. Remove from heat and let it cool for 5 minutes so it doesn’t cook the eggs in the next steps.
Step 4: Beat the Yolks
In a large mixing bowl, combine egg yolks, granulated sugar, ground cinnamon, and vanilla. Using an electric hand mixer, beat on high for 3–4 minutes until the mixture turns pale, thick, and voluminous.
Step 5: Whip the Whites
In a clean, dry bowl, whip the 5 egg whites until stiff peaks form.
Step 6: Combine Batter
- Stir the melted chocolate-butter mixture directly into the ground hazelnuts and almond flour.
- Gently stir this chocolate-nut paste into the beaten egg yolk mixture.
- Fold in the whipped egg whites in three separate batches using a rubber spatula.

TIP: THE PERFECT FOLD
Use a large spatula and cut down the middle of the batter, sweep around the bottom of the bowl, and fold over. Rotate the bowl 90 degrees and repeat in a figure-eight motion until no white streaks remain. Gentle folding keeps the trapped air alive, keeping the cake light!
Step 7: Bake to Fudgy Perfection
Pour into your prepared pan and smooth the top. Bake at 350°F (175°C) for 40 minutes.
Start checking at 35 minutes. A toothpick inserted into the center should come out with a few moist crumbs—never wet batter, but not clean like a dry sponge cake either.
Step 8: Cool & Glaze
Let the cake cool completely in the pan on a wire rack. Note: The cake will deflate slightly in the center as it cools—this is completely normal for flourless cakes and creates that delicious, dense core!
Whisk the powdered sugar, cocoa powder, and cold water (1 tbsp at a time) until thick and pourable. Drizzle over the cooled cake, let it drip over the edges, and garnish with chocolate flakes or fresh berries.

Flourless Cake Troubleshooting Chart
| Issue | Cause | Easy Fix |
| Cake collapsed too much in the middle | Over-whipped egg whites or opened oven door too early | Whip egg whites only to stiff peaks (not dry/clumpy); refrain from opening the oven during the first 30 minutes. |
| Texture feels oily or dense | Over-processed hazelnut meal turned to paste | Pulse nuts in short bursts; do not let the processor run continuously. |
| Chocolate seized/grainy | Steam or water dripped into melting chocolate | Keep double boiler on low heat and ensure no water droplets enter the bowl. |
| Glaze is too thin/running off | Added too much water at once | Whisk in extra powdered sugar 1 tablespoon at a time until it coats the back of a spoon. |
What I’ve been making lately
- Classic Danish Vanilla Butter Cookies (Vaniljekranse)
- Creamy Bell Pepper & Walnut Salad Magic
- Perfect Greek Salad Recipe (Authentic Horiatiki)
- Creamy Roasted Tomato Risotto
- Refreshing Melon Olive Salad with Basil & Peaches (Easy Summer Recipe)

Frequently Asked Questions (FAQs)
Are you looking for more delicious cake recipes? You might like some of these:
- Blueberry cookies
- 1 bowl vegan blueberry muffins
- No bake raspberry cheesecake
- Pull apart cinnamon bread
- Swedish Saffron buns
- German Stollen cake
- Corner Bakery Coffee Cake
- Chinese Sponge Cake
- Grandma’s Coffee Cake Recipe
Amazing Flourless Hazelnut Chocolate Cake (Naturally Gluten-Free)

Ingredients
- 1½ cup (150g) Almond Flour
- 1½ cup (200g) Hazelnuts
- 8.8 oz (250g) Butter – (1 cup + 2 tbsp)
- 7 oz Dark Chocolate – (about 1⅓ cups)
- 5 Eggs
- 1 cup (200g) Sugar
- 1 tsp (2g) Cinnamon
- 1 tsp (2g) Vanilla Powder — or 2 tsp vanilla extract
For the Glaze
- 1 cup (120g) Powdered Sugar
- 2-3 tbsp (12-18g) Cacao Powder
- 1-2 tbsp (15-30ml) Cold Water
Optional topping
- 2 tbsp (15g) Chocolate flakes or Powdered sugar
Instructions
Step 1: Prepare the oven and pan
- Preheat your oven to 350°F (175°C). Line an 8-inch round baking dish with parchment paper, letting the paper come up the sides slightly for easy removal. Lightly grease if needed.
Step 2: Grind the hazelnuts
- Add the hazelnuts to a food processor and pulse until finely ground—similar to the texture of almond flour. Be careful not to over-process, or you’ll end up with hazelnut butter. Set aside.
Step 3: Melt the butter and chocolate
- Combine the butter and chopped dark chocolate in a heatproof bowl set over a pot of simmering water (double boiler). Stir occasionally until fully melted and smooth. Remove from heat and let it cool slightly.
Step 4: Whisk the egg yolks
- In a large bowl, whisk the egg yolks with the sugar, cinnamon, and vanilla powder using an electric mixer. Beat for 3–4 minutes, until the mixture is thick, pale, and foaming.
Step 5: Whip the egg whites
- In a separate clean bowl, whisk the egg whites until stiff peaks form. Set aside.
Step 6: Combine the batter
- Pour the melted chocolate-butter mixture into the ground hazelnuts and almond flour. Stir until well combined. Then pour this nut mixture into the egg yolk mixture and stir gently until just combined. Finally, fold in the whipped egg whites a little at a time, using a spatula and gentle folding motions—you want to keep as much air as possible.
Step 7: Bake
- Pour the batter into your prepared baking dish and smooth the top. Bake at 350°F (175°C) for about 40 minutes, or until the cake is just set—a toothpick inserted into the center should come out with a few moist crumbs, not wet batter. The cake will deflate slightly as it cools; this is normal.
Step 8: Cool
- Let the cake cool completely in the pan on a wire rack before glazing.
Step 9: Make the glaze
- In a small bowl, whisk together the powdered sugar and cocoa powder. Add cold water 1 tablespoon at a time, stirring until you reach a thick, creamy, pourable consistency. It should coat the back of a spoon but still spread easily.
Step 10: Glaze and decorate
- Pour the glaze over the cooled cake, spreading it gently to the edges. Let it drip slightly down the sides for a rustic look. Sprinkle with chocolate flakes or a light dusting of powdered sugar.
Step 11: Serve
- Slice and serve with ice cream and fresh berries for the ultimate contrast of warm, fudgy cake and cold, creamy ice cream.
Notes
Tips for the Best Results
On grinding hazelnuts: Pulse in short bursts and stop as soon as they look like coarse sand. Over-processing will turn them into a paste and change the texture of the cake. On melting chocolate: Keep the heat low and stir often. If any water gets into the chocolate, it can seize and become grainy. On folding egg whites: Use a large spatula and fold in a figure-eight motion, rotating the bowl as you go. Stop as soon as the streaks disappear—over-mixing deflates the batter. On baking: This cake is meant to be fudgy, not dry. Start checking at 35 minutes. If the center still jiggles slightly, give it 3–5 more minutes. A few moist crumbs on a toothpick is perfect. On the glaze: If it’s too thick, add water ½ teaspoon at a time. If it’s too thin, add powdered sugar 1 tablespoon at a time. On storage: Store in an airtight container at room temperature for up to 3 days, or in the fridge for up to 5 days. Bring to room temperature before serving for the best texture. On freezing: Wrap individual slices tightly in plastic wrap and freeze for up to 2 months. Thaw overnight in the fridge.About the author
Recipe developed by Simone, a vegetarian chef and food blogger with 13+ years of vegan cooking experience.