Ingredients
The following ingredients have 12 Servings
- 8 ounces (227 grams) bittersweet chocolate, (finely chopped)
- 2/3 cup (57 grams) Dutch-process cocoa, (sifted)
- 2 teaspoons instant espresso powder*
- 1 cup boiling water
- 1 3/4 (222 grams) cups all-purpose flour
- 1 cup (200 grams) granulated sugar
- 1/2 cup (100 grams) packed light brown sugar
- 1 teaspoon salt
- 1 teaspoon baking soda
- 1 cup (227 grams) sour cream, (at room temperature)
- 1/2 cup vegetable oil*
- 4 large eggs plus one egg yolk, (at room temperature)
- 1 tablespoon white vinegar
- 2 teaspoons vanilla extract
- 2/3 cup (133 grams) granulated sugar
- 4 large egg whites
- 1/4 teaspoon salt
- 3 sticks (340 grams) unsalted butter, (cut into 12 pieces and at room temperature)
- 12 ounces (340 grams) semisweet chocolate, (melted and cooled slightly)
- 1 teaspoon vanilla extract
