8 or 10 inch (20-30 cm) springform pan or pastry ring
large mixing bowls
parchment paper
Ingredients
For the cake
1 cup (250ml) fresh milk
¾ cup (60g) unsweetened cocoa powder
1 cup (200g) sugar
25gr (1oz) good quality semisweet chocolate, finely chopped
½ cup (113 g/4 oz) unsalted butter
1 teaspoon vanilla
3 tablespoons (45ml) cognac (optional)
17.6 oz / 500g plain vanilla cookies like petit-beurre, animal crackers, graham crackers, tea biscuits, Digestive biscuits or Marie biscuits
1 cup (100g) chopped nuts (I use half pistachio, half walnuts)
For the ganache topping
½ cup + 1½ tablespoons (150ml /5 fl oz) heavy cream with at least 33% fat
150g (5.3oz) good quality dark, semisweet chocolate, finely chopped
Instructions
Butter and line the bottom and sides of your pan. If you have a pastry ring, just butter and line the sides. Set aside.
In a medium saucepan, add the milk, cocoa powder, sugar, butter, and the 25g/1oz chopped chocolate. Whisk continuously over medium heat and bring to a boil. When it starts boiling, lower the heat and let it simmer for 5 minutes while whisking. It’s important not to stop whisking so the mixture doesn’t burn. After about 5 minutes, it will thicken slightly.
1 cup (250ml) fresh milk, ¾ cup (60g) unsweetened cocoa powder, 1 cup (200g) sugar, ½ cup (113 g/4 oz) unsalted butter, 25gr (1oz) good quality semisweet chocolate, finely chopped
Remove the saucepan from the heat and whisk in the vanilla and the cognac (if using). Set it aside to cool a bit.
In a large bowl, use your hands to break the cookies into medium and small pieces.
17.6 oz / 500g plain vanilla cookies like petit-beurre, animal crackers, graham crackers, tea biscuits, Digestive biscuits or Marie biscuits
Pour the chocolate mixture over the cookie pieces. Add half of the nuts (½ cup/50g) and stir everything with a rubber spatula or large spoon. Make sure to coat everything well.
Transfer the mixture to the prepared pan and press it in using the spatula or the back of a spoon. Press down tightly and even out the surface. Refrigerate the cake for about 30 minutes.
Heat the cream in a small saucepan until it just begins to boil and tiny bubbles appear on the sides of the saucepan. Don't boil it.
½ cup + 1½ tablespoons (150ml /5 fl oz) heavy cream with at least 33% fat
Pour the hot cream over the chopped chocolate (150g) and let it sit for 5 minutes without stirring. After 5 minutes, stir the mixture until it’s smooth and creamy and the chocolate has melted.
150g (5.3oz) good quality dark, semisweet chocolate, finely chopped
Take the cake out of the refrigerator and pour the ganache on the top. Use the back of a spoon to spread it evenly.
Add the remaining nuts on top.
Cover the cake loosely with plastic wrap and refrigerate it overnight. This is the most important step! The cake needs to be refrigerated overnight (at least 8 hours) to solidify properly and allow all the flavors to develop.
Unlatch the pan and remove the parchment paper. Slide the cake onto a plate or cake stand.
Enjoy!
Notes
Tips for Success
Make sure you use full fat cream so that the chocolate ganache has the perfect consistency. Low-fat cream will make it too runny.
Weigh all your ingredients beforehand to ensure accurate results.
Press the cake mixture down tightly in the pan and even out the surface to make enough room for the ganache layer on top.
This cake needs to be refrigerated overnight to solidify properly and allow all the flavors to develop.