- Why did the sponge collapse?
- You opened the oven door too early (thermal shock) or didn't whip the eggs stiff enough.
- The cream is too thick.
- Add a little extra liquid heavy cream, a teaspoon at a time, to loosen it up.
Chestnut Walnut Layer Cake
This cake follows classic pastry school rules: a light, airy sponge meets a rich, fatty cream. Walnut and chestnut reinforce each other's earthy, deep tones, while the cream adds silkiness. The sponge acts as the perfect carrier for the decadent filling.
Ingredients
1 1/4
cups
All-Purpose Flour
1
cup
Ground Walnuts
4
large
Eggs (room temperature)
3/4
cup
Granulated Sugar
1
tsp
Baking Powder
1
pinch
Salt
1
cup
Heavy Cream
7
oz
Chestnut Puree
5
oz
Walnut Butter or Sweetened Ground Walnut Paste
1/4
cup
Chocolate Sauce
1
tbsp
Butter (for pan)
Shopping List (0)
Equipment Needed
- Cake Pan (9 inch)
- Electric Mixer
- Serrated Knife
- Spatula
Allergen Information
Wheat
Egg
Tree Nuts
Milk
Instructions
1
✓
Preheat oven to 350°F. Line the bottom of the cake pan with parchment paper and grease the sides.
Tip: Only paper the bottom; the sides need friction for the batter to climb.
2
✓
Whip eggs, sugar, and salt until very pale and fluffy (6-8 minutes). It should triple in volume.
Tip: This is the 'soul' of the sponge. The trapped air bubbles expand with heat to lift the cake.
3
✓
Mix flour, baking powder, and ground walnuts together. Gently fold into the egg mixture.
Tip: Walnut oil weighs down the foam, so work efficiently to keep the air in. Don't sift the nuts with the flour as they'll get stuck.
4
✓
Pour into the pan and bake for 25-30 minutes until a toothpick comes out clean.
Tip: Do not open the door in the first 20 minutes!
5
✓
Cool completely, then slice horizontally into two layers.
Tip: Warm sponge is sticky and crumbly. Cooling sets the structure.
6
✓
Whip the heavy cream and fold in the chestnut puree and walnut paste.
Tip: Ensure all ingredients are cold so the cream holds its shape.
7
✓
Fill the layers, frost the cake, and drizzle with chocolate sauce. Chill for 2 hours.
Tip: Chilling allows flavors to meld and the cake to soften from the moisture in the cream.
Recipe FAQ
Ingredients
- 1 1/4 cups All-Purpose Flour
- 1 cup Ground Walnuts
- 4 large Eggs (room temperature)
- 3/4 cup Granulated Sugar
- 1 tsp Baking Powder
- 1 pinch Salt
- 1 cup Heavy Cream
- 7 oz Chestnut Puree
- 5 oz Walnut Butter or Sweetened Ground Walnut Paste
- 1/4 cup Chocolate Sauce
- 1 tbsp Butter (for pan)