Ingredients
Equipment
Method
Cake
- Preheat oven to 350°F. Grease a 9x9 baking dish and set aside.
- In a bowl, whisk flour, sugar, soda and salt together. Set aside.
- In a medium saucepan bring butter and water to a boil. Remove from heat and whisk in peanut butter and oil. Add eggs, buttermilk and vanilla. Beat well.
- Stir dry ingredients into saucepan and stir just until combined.
- Pour cake batter into prepared pan and bake for 20-25 minutes or until a wooden skewer comes out clean. Prepare frosting while cake is finishing baking.
Frosting
- Melt butter, peanut butter and buttermilk together in a saucepan, then bring to a boil. Remove from heat and beat in vanilla.
- Add powdered sugar 1/2 cup at a time beating until smooth.*
- Pour the warm frosting over the hot cake and spread evenly. Garnish with chopped peanuts.
Notes
* If the frosting gets too thick, add more buttermilk until it's thin enough to pour over the cake.