Mario Hat Cake | Nerdy Nummies | Rosanna Pansino

Ingredients

• ¼ cup butter, unsalted
• 1 cup sugar
• 2 eggs
• ½ teaspoon vanilla extract
• 1 cup all-purpose flour
• 2 tablespoons cocoa powder
• ¼ teaspoon baking soda
• ¼ teaspoon salt
• ½ cup sour cream
• ¼ cup whole milk
• 1 ½ teaspoons red gel color