Gluten Free Tuesday: One Bowl Chocolate Cake Recipe

Name: Gluten-Free Tuesday: One Bowl Chocolate Cake Recipe
Ingredients: One Bowl Classic Chocolate Cake Dry Ingredients:; 2 cups granulated sugar; 1 cup white rice flour; 1/2 cup cornstarch; 1/4 cup sweet rice flour; 1 cup unsweetened cocoa powder; 1 1/2 teaspoons baking powder; 1 1/2 teaspoons baking soda; 1 teaspoon salt; 1 teaspoon xanthan gum; One Bowl Classic Chocolate Cake Wet Ingredients:; 2 large eggs; 1 cup milk; 1/2 cup vegetable oil; 2 teaspoons vanilla extract; 1 cup warm water (warm from the tap is fine); Basic Chocolate Buttercream Ingredients:; 4 cups (1 pound) powdered sugar; 3/4 cup Dutch process cocoa powder; 1/2 teaspoon salt; 1 cup butter; 1/3 cup milk