1Sift dry ingredients and set aside. Mix oil, water, peanut butter and butter above stove and bring to boil. Pour over dry ingredients and mix. Add buttermilk, vanilla and eggs. Mix well.
Bake in a jelly roll pan 350 degrees for 20-25 minutes
2While warm, ice with 1/2 cup peanut butter, 1 stick butter and 1/3 cup milk. Boil these and add 1 teaspoon vanilla. Add enough powdered sugar to make frosting consistency.