Ingredients

• 2 cups all-purpose flour
• 2 cups white sugar
• 1 teaspoon baking soda
• 0.5 cups milk
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 cup water
• 0.5 cups butter
• 0.5 cups vegetable oil
• 0.5 cups peanut butter

Instructions

1. 1 Gather all ingredients.
2. 2 Preheat the oven to 350 degrees F (175 degrees C). Grease a rimmed 10x15-inch baking pan.
3. 3 To make the cake: Whisk together flour, sugar, and baking soda in a large bowl.
4. 4 Beat milk, eggs, and vanilla into flour mixture with an electric mixer on low speed until smooth.
5. 5 Place water, butter, oil, and peanut butter into a saucepan; cook and stir over medium heat until smooth, about 5 minutes.
6. 6 Stir peanut butter mixture into flour mixture until batter is well mixed; pour and spread onto the prepared baking sheet.
7. 7 Bake in the preheated oven until a toothpick inserted into the center of the cake comes out clean, about 20 minutes.
8. 8 To make the icing: Melt butter and peanut butter in a saucepan over medium heat; stir until smooth.
9. 9 Mix in milk and vanilla until combined.
10. 10 Whisk in confectioners' sugar until icing is smooth, 3 to 5 minutes.
11. 11 Pour icing over warm cake and spread evenly.

Nutrition per serving