4 c. quick oats
2/3 c. butter
1/2 c. white Karo syrup
1 c. brown sugar
2 tsp. vanilla

Cream butter and sugar. Add other ingredients. Mix well. Pat into a 13"x9" lightly greased pan. Bake 15 to 16 minutes. (Do not over bake, the bars will appear unbaked but harden as they cool.) When cool, melt 6 ounces of chocolate chips and 2/3 cup of peanut butter and spread over bars. Refrigerate until frosting hardens.