Gluten-Free Single-Layer Yellow Cake Recipe

Ingredients (18)

• Gluten-free non-stick cooking spray
• 1 1/4 cups (5 ounces) white rice flour
• 1 cup (8 ounces) granulated sugar
• 1/2 cup (2 ounces) potato starch
• 1 1/4 teaspoons baking powder
• 3/4 teaspoon salt
• 1/2 teaspoon xanthan gum
• 1 stick (4 ounces) unsalted butter, softened
• 2/3 cup milk or water
• 3 large eggs
• 2 teaspoons vanilla extract
•  
• For the Chocolate Buttercream:
• 2 cups (8 ounces) powdered (confectioner’s)sugar, sifted if lumpy
• 6 tablespoons cocoa powder, sifted if lumpy
• 1/2 teaspoon salt
• 1 stick (4 ounces) unsalted butter, softened
• 4 tablespoons milk plus additional as needed