Cream together:
1/2 cup margarine
1/2 cup sugar
1/2 cup brown sugar
Then add:
1 egg
1/3 cup peanut butter
1/2 tsp. baking soda
1/4 tsp. salt
1/2 tsp. vanilla
1 cup flour
1 cup oats
Bake for 20-25 minutes at 350 degrees. I bake it until the edges become light brown, these are not very good if they are overcooked.
Add a half of a bag of chocolate chips on the brownies while still hot and then spread.
Mix together:
1/2 cup powdered sugar
1/4 cup peanut butter
1-4 Tbsp. milk
Spread on brownies when cool.