Peanut Butter Sheet Cake

Peanut Butter Sheet Cake

 My husbands favorite cake.

cake:

1/2 cup butter

1/2 c vegetable shortening 

1 c water

1/2 c peanut butter

2 c sugar

2 c flour

1/2 c buttermilk

2 eggs

1/2 t baking soda

1 t vanilla

frosting:

1/2 c butter

6 T milk

1/4 c peanut butter

2 3/4 c powdered sugar

1 t vanilla

Preheat oven to 400.

Spray or line with parchment paper a 15x10x1 baking sheet.

Combine flour and sugar in mixing bowl and set aside.

 In a large microwave mixing bowl combine butter, shortening, and water. Microwave for 3 minutes until all is melted. Stir in peanut butter and return to microwave for 30 seconds. Stir until smooth. Add flour, and sugar to the hot liquid and stir well, Add buttermilk, then baking soda, then eggs, and then vanilla, stirring after each addition. 

Pour into baking sheet and bake for 20 minutes or until toothpick comes out clean.

To make frosting: In a small microwave mixing bowl, combine butter, and milk and microwave until butter is melted. Add peanut butter and return to microwave for 30 seconds. Add powder sugar and vanilla, mix well.

Cool cake for 5 minutes. Poke cake all over with fork to allow frosting to ooze down into.

Pour frosting over cake.  Sprinkle course sea salt on top of frosting and cool completely. 

Enjoy!