2 sticks butter
4 c. brown sugar
1 tsp. baking powder
2 c. flour
4 eggs
1 (12 oz.) bag chocolate chips

Preheat oven to 325 degrees. Grease 9 x 12 jelly roll pan. Cream butter and sugar. Add eggs one at a time and beat well after each. Add flour and baking soda and beat well. Pour into jelly roll pan and sprinkle with chocolate bits. Bake 35 minutes. Cool well and cut into squares.