2/3 c. butter
1 c. brown sugar
3 tsp. vanilla
4 c. oatmeal
1/2 c. light corn syrup
2/3 c. chunky peanut butter
6 oz. chocolate chips

Cream butter and sugar; add oatmeal, syrup and vanilla. Mix well. Pour into greased 9 x 13 inch pan. Bake 12 minutes at 350 degrees. Cook cake part. Mix chocolate chips and peanut butter in double boiler or microwave (2 minutes at high). Spread topping over cake part. Delicious!