Butterfingers

3/4 c. sugar
½ c. brown sugar
1 egg
1 tsp. vanilla
½ c. butter
1/3 c. peanut butter
1 c. flour
1 c. oats
2 tsp. baking soda
1/4 tsp. salt

Frosting:
2 c. powdered sugar
1/4 c. peanut butter
2-3 TBS. milk
3 TBS. cocoa
1 TBS. milk

Preheat oven to 350. Grease a 9X13 pan. Mix together the sugar, brown sugar, egg, vanilla, butter, and peanut butter. Stir in the flour, oats, baking soda and salt. Press into prepared pan. Bake for 12-15 minutes. When cool frost.
To prepare frosting, mix together powdered sugar, peanut butter and milk. Reserve 1/3 cup of the frosting. Spread remaining frosting on to the cooked mixture. With remaining 1/3 cup, add 3 TBS. cocoa and 1 TBS. milk. Mix and frost, swirling into peanut butter frosting.