Preheat oven to 350°F (175°C).

In a large bowl, cream together the butter, light brown sugar, and granulated sugar.

Beat in the eggs one at a time, then stir in the vanilla extract and food coloring.

In a separate bowl, whisk together the flour, cocoa powder, baking powder, and salt.

Gradually add the dry ingredients to the wet mixture until well combined.

Scoop the dough and roll into balls, then coat each ball in granulated sugar and powdered sugar.

Place the coated balls on a baking sheet.

Bake in the preheated oven for 10 minutes or until set.