1 1/2 sticks butter
1/2 c. packed dark brown sugar
1/2 c. white sugar
1/2 c. dark corn syrup
1 tsp. vanilla
4 c. quick cook oats
1 (6 oz.) pkg. chocolate chips
2/3 c. creamy peanut butter

Cream butter and sugars, beating in corn syrup. Stir in oats. Pat mixture in 13"x9" pan. Bake at 350 degrees for 20 to 25 minutes. Cool slightly while melting chocolate chips and peanut butter. Spread over baked mixture. Cool. Cut in squares.