Peanut Butter Fingers

1 cup butter
1 cup brown sugar
1 cup peanut butter
3/4 cup sugar
3 eggs
1 tsp. baking soda
2 3/4 cup flour
3/4 tsp. salt
1 tsp. vanilla
4 cups oatmeal

Combine butter, sugars, eggs and peanut butter. Add in soda, vanilla, flour, oatmeal, and salt. Bake in greased cookie sheet at 350 for 10 minutes. Spread with peanut butter and frost with chocolate frosting.