1/2 c. butter
1/2 c. sugar
1/2 c. light brown sugar, firmly packed
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. quick rolled oats
1 (6 oz.) pkg. semi-sweet chocolate chips
1/2 c. confectioners' sugar
1/4 c. creamy peanut butter
2-4 tbsp. milk

Mix first 10 ingredients; spread into 9 x 13 inch pan. Bake at 350 degrees for 20-25 minutes until lightly browned. Immediately sprinkle chips on top; allow to melt and spread evenly (this can be achieved by covering the pan for a couple of minutes). Mix last 3 ingredients and spread over chocolate. Allow to cool. Cut into bars or squares.