Reese's Peanut Butter Squares

1 c. butter
1 c. brown sugar
1 c. white sugar
1 c. peanut butter
1 c. quick oats
2 eggs
2 c. flour
1/2 tsp. salt
1 tsp. soda
1 tsp. vanilla

Cream butter and sugars. Add eggs, peanut butter, and vanilla. Beat well. Add dry ingredients. Spread on greased jelly roll pan or large cookie sheet. Bake at 350 for 12-15 minutes. Cool and spread a thin layer of peanut butter, then ice with chocolate icing. Cut into finger size slices.