Chocolate Cupcakes
2 C. flour
½ C. unsweetened cocoa powder
1 tsp. baking soda
½ tsp. baking powder
½ tsp. kosher salt
1 C. unsalted butter, room temperature
1 ¾ C. dark brown sugar, packed
¼ C. sugar
4 eggs (separated) + 2 additional egg whites
4 oz. unsweetened chocolate, melted and cooled a bit
3 oz. bittersweet chocolate (70%), melted and cooled a bit
1 tsp. vanilla extract
1 C. buttermilk, room temperature
1. Preheat the oven to 350 degrees, and line two 12-cup muffin pans with cupcake liners. Set aside.
2. In a clean, dry bowl of an electric mixer with the whip attachment, beat all 6 egg whites on high speed until the whites form stiff peaks. Transfer the whites to a clean bowl and set aside in a cool place. Wash out the mixing bowl.
3. In a medium bowl, combine the flour, cocoa powder, baking soda, baking powder, and salt. Whisk to combine, then set aside.
4. In the bowl of an electric mixer fitted with a paddle attachment, beat the butter until smooth and creamy. Add the sugars and beat for at least two minutes, until light and fluffy. Add the 4 egg yolks and beat well, scraping down the sides of the bowl. Then add the vanilla.
5. Add the chocolate and mix until thoroughly combined, scraping down the sides and bottom of the bowl.
6. Next, with the mixer on low speed, add the dry ingredients alternating with the buttermilk. Mix just until combined.
7. Remove the paddle attachment, and fold in about 1/3 of the egg whites. This will help lighten the batter. Then add the rest of the egg whites, folding them into the batter as gently, but thoroughly as possible.
8. Spoon the batter into the prepared muffin pans, filling each cupcake liner about ¾ full. Bake one pan at a time at 350 degrees for 20 minutes.
9. Let the cupcakes cool completely (about 15 minutes) before frosting with Buttercream Frosting (recipe follows).
The cupcakes (without frosting) can be frozen for a couple of weeks, if wrapped very well in an airtight container.
Buttercream Frosting
8 oz (1 pkg) cream cheese, room temperature
5 ½ Tbsp. unsalted butter, room temperature
1 tsp. vanilla extract
5 C. powdered sugar
1. In a bowl of a stand mixer fitted with a paddle attachment, combine the cream cheese and butter. Mix for about one minute until smooth. Add the vanilla.
2. On low speed, add the powdered sugar, about 1 cup at a time, until combined. Turn the mixer to medium-high speed and beat for 2-3 minutes, or until the frosting is light in color, smooth, and almost fluffy.
3. Dump the frosting in a large Ziploc bag and seal the bag. Cut off the tip of the bag and frost your cupcakes. Dust with unsweetened cocoa powder.