Dr Pepper® Cake

Ingredients

• ✓ 2 cups all-purpose flour
• ✓ 2 cups white sugar
• ✓ 1 cup Dr. Pepper soft drink
• ✓ 3 tablespoons unsweetened cocoa powder
• ✓ 2 eggs
• ✓ 1 teaspoon baking soda
• ✓ 1 teaspoon vanilla extract
• ✓ 1 cup butter
• ✓ ½ cup buttermilk
• ✓ 1 ½ cups miniature marshmallows
• ✓ 6 tablespoons butter
• ✓ 1 cup packed brown sugar
• ✓ ⅔ cup peanut butter
• ✓ ¼ cup milk
• ✓ ⅔ cup chopped, unsalted dry-roasted peanuts