Mini Red Velvet Whoopie Pies

Name: Mini Red Velvet Whoopie Pies
Cook time: 12 min
Total time: 12 min
Cuisine: American
Ingredients: 288 grams all-purpose flour (2 1/4 cups); 15 grams unsweetened cocoa powder (2 tablespoons); 1 teaspoon baking powder; 1/2 teaspoon baking soda; 1/4 teaspoon kosher salt; 113 grams unsalted butter, softened (1/2 cup; 1 stick); 100 grams light brown sugar (1/2 cup); 100 grams granulated sugar (1/2 cup); 1 large egg, at room temperature; 1/2 teaspoon vanilla bean paste; 120 milliliters buttermilk (1/2 cup); Red gel food coloring; Cream cheese frosting, strawberry buttercream, ruby ganache, or your favorite frosting, for filling