INGREDIENTS
1/2 cup
semi-sweet chocolate chips
6 tbsp
unsalted butter, softened
3/4 cup
light brown sugar
1
large egg
1/4 tsp
peppermint extract*
1/4 cup
+ 2 tablespoons unsweetened cocoa powder
3/4 cup
all-purpose flour
1/2 tsp
baking powder
1/4 tsp
salt
6
large marshmallows
crushed candy canes or peppermints, for decorating