Cream:

1/2 c. butter
1/2 c. brown sugar
1/2 c. white sugar

Blend in:

1 egg
1/3 c. peanut butter
1/2 tsp. baking soda
1/2 tsp. salt
1/2 tsp. vanilla

Stir in mixture:

1 c. flour
1 c. oatmeal

Bake at 350 degrees for 18 minutes. Take out of oven. Pour 3/4 cup chocolate chips over bars and return to oven for 2 minutes. Take out of oven and pour frosting over bars and twirl with a fork.

Mix frosting while bars are baking:

1 c. powdered sugar
1/4 c. peanut butter
6 tbsp. milk

Beat and mix well.