Peanut Butter Sheet Cake

Ingredients for cake:
2 cups all-purpose flour
2 cups white sugar
½ teaspoon baking soda
¼ teaspoon salt
1 cup water
¾ cup butter, softened
½ cup peanut butter
¼ cup vegetable oil
2 eggs
½ cup buttermilk
1 teaspoon vanilla
Ingredients for Icing:
1 stick butter
½ cup peanut butter
6 tablespoons milk
1 teaspoon vanilla
1 box confectioner’s sugar
Directions:
1. Preheat oven to 350 degrees. Grease a 10x15x1 inch jelly roll pan.
2. In a large bowl, stir together the flour, sugar, baking soda and salt. Set aside.
3. Combine the water and ¾ cups butter in a saucepan and bring to a boil. Remove from heat and stir in ½ cup peanut butter and vegetable oil until well blended.
4. Stir this mixture into the dry ingredients. Combine the eggs, buttermilk and vanilla; stir into the peanut butter mixture until well blended. Spread the batter evenly in the prepared pan.
5. Bake for 15 to 26 minutes in the preheated oven, or until a toothpick inserted near the center comes out clean.
6. While the cake is baking, prepare the icing. Bring the butter, peanut butter and milk to a boil in a large saucepan. Add the vanilla. Mix in the powder sugar. Mix well, beating with a handheld electric mixer for smoothest consistency.
7. Frost the cake while frosting is hot and the cake is warm.
8. Enjoy!