INGREDIENTS
1
Egg yolk, large
4
Eggs, large
3 cups
Rice cereal, toasted
1 1/2 tbsp
Corn syrup, light
1/2 cup
Nutella
1/4 tsp
Baking powder
1 1/2 tsp
Baking soda
2 1/3 cups
Cake flour
1 cup
Cocoa powder, natural unsweetened
1 tsp
Kosher salt
8 oz
Milk chocolate, high-quality
14 oz
Semisweet or bittersweet chocolate
2 1/2 cups
Sugar
1 1/2 tsp
Vanilla extract
1
Vegetable oil spray, Nonstick
1/4 cup
Hazelnuts
1 cup
Coffee, hot
2 tsp
Espresso, instant powder
2 1/8 cups
Butter, unsalted
1 cup
Buttermilk
1 1/2 cups
Heavy cream