Chocolate Mayonnaise Cake with Buttermilk Peanut Butter Frosting

3 cups flour
1 1/2 cups white sugar
1/3 cup unsweetened cocoa powder
1 1/2 tsp baking soda
2 1/4 tsp baking powder
1 1/2 cups mayonnaise
1 1/2 cups water
1 1/2 tsp vanilla extract

Preheat oven to 350 degrees.  Lightly grease and flour two 9 inch layer pans or one bundt pan.  In large mixing bowl combine all dry ingredients, stir.  Add mayonnaise, water and vanilla.  Mix with electric mixer until well blended (approx 2 mins).  Pour batter in pan(s).  Bake for approx 50-55 mins depending on oven.  Cool and frost with favorite frosting.

Peanut Butter Frosting

Prep Time: 10 minutes

2 cup confectioners’ sugar
1 cup creamy peanut butter
5 tablespoons unsalted butter, melted
2  teaspoons vanilla extract
¼ teaspoon kosher salt
1 cup buttermilk

Combine all ingredients in large mixing bowl.  With electric mixer whip until creamy.  Add extra confectioner's sugar or buttermilk to adjust texture.