1 c. chocolate chips
1/3 c. butter
1/2 c. sugar
1 tsp. vanilla
2 eggs
1/2 c. flour
1/2 tsp. baking powder
1/4 tsp. salt

Melt chocolate chips and butter together. Add sugar and vanilla. Beat in eggs one at a time. Add remaining ingredients. Bake at 375 degrees for 25 minutes in 8 x 8 pan.