INGREDIENTS
1 cup
all-purpose flour
1/2 cup
unsweetened cocoa powder
1/4 tsp
baking powder
1/4 tsp
salt
6 tbsp
unsalted butter, at room temperature
1/2 cup
granulated white sugar
1
large Eggland's Best egg
1/2 tsp
pure vanilla extract
12 oz
bittersweet chocolate, chopped
1/4 tsp
peppermint extract
1/8 tsp
salt
sprinkles or nonpareils, for decorating (optional)