1/2 c. butter
1/2 c. sugar
1/2 c. brown sugar
1 egg
1/3 c. creamy peanut butter
1/2 tsp. baking soda
1/4 tsp. salt
1/2 tsp. vanilla
1 c. flour
1 c. rolled oats
6 oz. chocolate pieces
1/2 c. confectioners' sugar
1/4 c. peanut butter
2 to 4 tbsp. milk

Mix first ten ingredients and spread in a greased 9x13 pan. Bake at 350 degrees for 20 to 25 minutes until lightly browned.

Immediately sprinkle 6 ounce of chocolate pieces on top. Then mix confectioners' sugar, peanut butter and milk; drizzle this over chocolate pieces.