Preheat oven to 350°F.
Grease and flour an 8 or 9 inch square pan. Mix egg, brown sugar, applesauce, softened butter, peanut butter.
Sift all dry ingredients together. Add to moist ingredients.
Pour into prepared 8 inch pan.
Bake 40-45 min. Cool. Frost with peanut butter frosting.
Submitted by: Lucinda