Ingredients
1/2 cup (115g) unsalted butter
2 oz. (60g) dark chocolate (71%)
1/2 cup (60g) unsweetened cocoa powder
3/4 cup (95g) all-purpose flour
1/2 tsp. baking soda
3/4 tsp. baking powder
1/4 tsp. salt
2 large eggs, at room temperature
1/2 cup (100g) granulated sugar
1/4 cup (50g) light brown sugar
1 tsp. vanilla extract
1/2 cup (120ml) buttermilk*
1/2 stick (70g) unsalted butter, softened
1/4 cup (50g) vegetable shortening
1 jar of Nutella (you won't need all)
pinch of fine grain sea salt
1/2 tbsp. vanilla extract
2 1/2 cups (300g) confectioner's sugar
3 tbsp. heavy cream
6 Ferrero Rocher
1.5 oz. (40g) dark chocolate (71%)
Preparation