Seven, Starr's protective older brother, is known for his sweet tooth and love of indulgent treats.
Preheat oven to 350°F (175°C).
Melt butter and mix with sugar in a bowl.
Stir in eggs and vanilla.
Add cocoa, flour, salt, and baking powder. Mix well.
Spread into a greased 8x8 inch pan.
Bake for 25 minutes.