1/2 c. peanut butter (creamy or crunchy)
1/3 c. butter
1/4 c. brown sugar
1 c. sugar
2 eggs
1 (6 oz.) pkg. chocolate chips
1 c. plain flour
1 tsp. baking powder
1/4 tsp. salt
1/2 tsp. vanilla

Bake at 350 degrees, in buttered pan, for 25 to 30 minutes.