Mousse Cake Layers (Print Version)

# Ingredients:

→ Chocolate Cake

01 - 1/2 cup (120g) hot brewed coffee
02 - 1/2 cup (120g) sour cream
03 - 1 teaspoon vanilla extract
04 - 2 large eggs
05 - 1/2 cup (112g) vegetable oil or olive oil
06 - 1/2 teaspoon baking powder
07 - 3/4 cup (100g) packed dark brown sugar
08 - 1/2 cup (100g) finely ground granulated sugar
09 - 1 teaspoon baking soda
10 - 1/4 teaspoon kosher salt
11 - 2 tablespoons cornstarch
12 - 1/4 cup (25g) cocoa powder (dutch process)
13 - 3/4 cup (95g) multipurpose flour

→ Cake Soak

14 - 1 tablespoon cocoa powder (dutch process)
15 - 1/2 cup (120g) hot brewed coffee

→ Chocolate Mousse

16 - 3/4 cup heavy cream, plus 1 cup more, divided
17 - 1 1/2 teaspoons unflavored gelatin
18 - 3 tablespoons water
19 - 3 large eggs, yolks and whites separated
20 - 1/4 cup (50g) fine granulated sugar
21 - 7 oz of milk chocolate, broken into pieces
22 - 7 oz of 70% dark chocolate, chopped into bits
23 - 1/2 teaspoon tartar cream

→ Ganache

24 - 3/4 cup (180g) heavy cream
25 - 6 oz 70% dark chocolate, broken into pieces

# Instructions:

01 - Combine the dry goods in one bowl; mix the wet ingredients in another. Then gently stir both together and bake in a springform pan at 350°F for around 25-30 minutes.
02 - Flatten the cooled cake. Then use parchment paper or acetate to line your pan and pour the coffee mixture evenly over the cake.
03 - Melt the chocolates and blend them with the egg yolks. Mix that with the gelatin and cream, then fold in whipped cream and meringue until smooth.
04 - Spread the mousse over the cake evenly. Let it chill for a few hours or leave it overnight.
05 - Prepare ganache, pour it over the top once the mousse is firm, and cool it for half an hour before serving.

# Notes:

01 - You can swap in gluten-free all-purpose flour instead.
02 - Acetate can be replaced with parchment paper.
03 - It tastes better if chilled overnight.