Peanut Butter Sheet Cake Recipe- Six Sisters' Stuff

Ingredients

• 2 cups flour
• ½ teaspoon baking soda
• ¾ teaspoon baking powder
• ½ teaspoon salt
• ¾ cup butter (softened at room temperature)
• ¼ cup oil
• 1 ¾ cups sugar
• 2 eggs
• ½ cup smooth peanut butter
• 1 teaspoon vanilla
• ¾ cup water
• ¾ cup buttermilk
• 4 Tablespoons butter (softened at room temperature)
• 1 cup peanut butter (creamy)
• ¾ cup confectioners sugar
• 3 Tablespoons heavy cream