INGREDIENTS
Cupcakes::
1 cup
plus 2 tablespoons graham cracker crumbs (from 16 to 18 squares)
3 tbsp
sugar
5 tbsp
unsalted butter, melted
6 oz
bittersweet chocolate, roughly chopped
1 cup
plus 1 tablespoon sugar
3/4 cup
plus 2 tablespoons flour
7 tbsp
cocoa powder (not Dutch-processed)
3/4 tsp
baking powder
3/4 tsp
baking soda
1/2 tsp
salt
1
large egg, room temperature
1/2 cup
milk
1/4 cup
vegetable oil
1 tsp
pure vanilla extract
1/2 cup
boiling water
Extra chocolate or graham cracker pieces, to garnish
Frosting::
5
large egg whites
1 1/4 cups
sugar
1/2 tsp
cream of tartar
1 tsp
pure vanilla extract