Peppermint Sugar Cookie Bars

Start by preheating your oven to 375F. In a large bowl, mix your butter, granulated sugar, and 3 tbsp powder sugar together until light and fluffy. Add in your eggs and peppermint extract and mix again. Once your wet ingredients are combined, slowly add in your all-purpose flour, baking powder, and salt, and mix until incorporated. Add your batter to a lined 8x8 baking sheet and bake for 18-20 minutes. Allow to cool completely before icing.

For the icing: Add 1/2 cup soft butter to a stand mixer with a whisk attachment and whip on high speed for 5 minutes. Then add in your 1 1/2 cups confectioners sugar, 1 tsp vanilla, and 2 tbsp milk. Mix again on high speed for 7-10 minutes. Spread icing over cooled cookie bars and enjoy!