Chocolate-mint Sandwich Cookies

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Details

15 Ingredients

• 1/2 tsp vanilla extract
• 1 tsp baking powder
• 1/2 tsp salt
• 1/4 cup milk
• 1 Tbsp milk
• 1/4 tsp peppermint extract
• 3/4 cup baking cocoa
• 1 cup sugar
• 3/4 cup butter (no substitutes), softened
• 2 cups all-purpose flour
• 1/2 tsp baking soda
• 1 1/2 cups confectioners' sugar
• 2 drops green food coloring (optional)
• 1 egg
• 3 Tbsps butter, softened