Peanut Butter Fingers

I've been wanting to make these yummy treats for a while now and just haven't been able to find a really good recipe. Well, I finally found one and made them today for a friend of mine that has been going through cancer and is now in remission. She hasn't been able to eat certain foods, but I was told a few days ago that she would enjoy these. :)

1 cup butter
1/2 cup + 3 TBS white sugar
1 1/2 cup brown sugar
2 eggs
1 1/2 cup peanut butter
1 tsp soda
1 tsp salt
1 tsp vanilla
2 cups flour
2 cups rolled oats

Cream together butter and sugars, add eggs and mix. Then add peanut butter, mix. Add the dry ingredients and mix together. Place in jelly pan ( it is enough dough for two 9x13 pans, the dough should be 1/2 thick for the size of pan you use) I used a cookie sheet and it worked great.
Bake at 350 degrees for about 20 min. watch closely, the dough will raise. Pull out of the oven when the dough first starts to fall. Do not overcook. Let cool in pan. Put a layer of peanut butter and then chocolate frosting on the top. Cut and serve.