Preheat oven to 350 degrees. Line an 8 x 8 inch baking pan with parchment paper (or butter and flour).
Melt butter in a pan over medium-low heat. Whisk in cocoa powder. Allow to cool 10 minutes.
Once cool whisk in granulated and brown sugar. Whisk in eggs one at a time. Whisk in vanilla.
In bowl combine flour, baking powder and salt. Slowly whisk dry ingredients into wet ingredients.
Fold in cherry chocolate chips.
Spread batter evenly into prepared pan. Bake 25 - 30 minutes or until a toothpick inserted comes out with just a few crumbs. Remove from oven. Cool, slice and serve.