Peanut Butter Fingers

from the kitchen of Grandma Paget

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

Mix well then spread all over the cookie sheet.  Bake at 350 for 12 minutes. No longer, then frost with whipped peanut butter, then frost with chocolate frosting.