INGREDIENTS
1/2 cup
unsalted butter
2 oz
semi-sweet baking chocolate
1
heaping Tablespoon instant coffee*
1/2 cup
unsweetened cocoa powder (not Dutch processed)
3/4 cup
all-purpose flour*
1/2 tsp
baking soda
3/4 tsp
baking powder
1/4 tsp
salt
2
large eggs, at room temperature
1/2 cup
granulated sugar
1/4 cup
packed light brown sugar
1 tsp
vanilla extract
1/2 tsp
peppermint extract
1/2 cup
buttermilk*
1 cup
unsalted butter, softened to room temperature
3 cups
(360-480g) confectioners' sugar
1/4 cup
heavy cream*
1 tsp
vanilla extract
1/4 tsp
peppermint extract
salt,
optional for garnish: 4 ounces melted semi-sweet baking chocolate and crushed candy canes