You need to make this easy blueberry muffins recipe! It has blueberries, flour, sugar, vanilla, butter and vegetable oil. Weâve been making these muffins for years and are always happy that we did. Ingredients 4 tablespoons butter melted,Ÿ cup avocado oil or vegetable oil1 cup white granulated sugar1 large egg1 large egg white2 teaspoons vanilla extract½ cup buttermilk1ž cups Extra White Gold gluten free all purpose flour2 teaspoons baking powder2 teaspoons corn starch1-1.5 cups blueberries fresh or...