Preheat oven to 350 degrees F (175 degrees C). Spray a mini-muffin pan with non stick spray.
Stir sugar, eggs, and 1 teaspoon vanilla in the melted butter. Beat in 1/3 cup cocoa, 1/2 cup flour, salt, and baking powder by hand.
Spoon the batter into the muffin pan. About a tablespoon per tin. (It will fill about 20 mini-muffins)
Bake in preheated oven for 8 to 10 minutes.
Allow to cool and sprinkle with powder sugar if you wish.
Notes
You could easily add nuts to this brownie recipe if your family likes. Or if you are making a hot fudge sundae, just sprinkle a few on top! These brownies are a hit no matter how you chose to serve them.