Peanut Butter Sheet Cake

1 stick butter                 1 c water
2 c flour                      1/2 c cooking oil
2 c sugar                      2 eggs
1/2 c milk                      1 t vanilla
1/2 c peanut butter      1 t soda

In sauce pan combine:  butter, water, peanut butter, oil.
Put on  low heat until melted.  Cool slightly.
Add to flour, sugar, eggs, soda, & vanilla mixture. 
Blend well.  Pour onto greased & floured cookie
sheet.  Bake @400 for 20 min.

Topping
1 stick butter                  1 t vanilla
1/2 c peanut butter       1 box powdered sugar
1/3 c milk

Bring 1st  3 ingredients to boil  Add vanilla and
powdered sugar.  Mix well. Spread on cooled cake.