Indulge in the deliciousness of Cinnamon Sugar Donut Muffins that take just 30 minutes to make! These moist muffins are coated in a sweet cinnamon sugar mixture, perfect for breakfast or a tasty snack. With simple ingredients and easy steps, you'll enjoy baking these delightful treats at home.
1 ½ cups all-purpose flour
½ cup granulated sugar
2 teaspoons baking powder
½ teaspoon baking soda
½ teaspoon salt
1 teaspoon ground cinnamon (plus extra for topping)
1 large egg
½ cup buttermilk (or milk with 1 teaspoon vinegar)
⅓ cup vegetable oil
1 teaspoon vanilla extract
¼ cup unsalted butter, melted (for coating)
½ cup sugar mixed with 1 tablespoon ground cinnamon (for coating)