2/3 c. melted butter
4 c. quick oats
1 c. brown sugar
1/3 c. light corn syrup
3 tbsp. vanilla

TOPPING:

6 oz. chocolate chips
2/3 c. peanut butter

Mix base ingredients together with spoon. Grease 13 x 9 inch pan. Spread mixture into pan and bake at 350 degrees for 15 minutes - no longer. While mixture is baking, melt topping ingredients over low heat; spread over base. Refrigerate for 2 hours or overnight. Cut into squares. Store in refrigerator. Yield: 2 dozen.