Cooking with Kristina: Brownies

1 c sugar
2 eggs
1/2 t vanilla
1/2 c melted butter
(mix well)
1/2 c flour
1/3 c cocoa
1/4 t baking powder
1/4 t salt
(mix, pour into greased 8-inch pan, add anything fun that you feel like adding to the top, cook 350 for 20-30 minutes or until done.)