Indulge in the sweet delight of Cinnamon Sugar Donut Muffins that combine the best of both worlds! These easy muffins are fluffy, buttery, and coated in a heavenly cinnamon sugar crust. Perfect for breakfast or a snack, they can be enjoyed warm straight from the oven.
1 ½ cups all-purpose flour
1 teaspoon baking powder
½ teaspoon baking soda
½ teaspoon salt
¾ cup granulated sugar
1 teaspoon ground cinnamon (plus extra for topping)
½ cup unsalted butter, melted
2 large eggs
¾ cup buttermilk (or ¾ cup milk + 1 tablespoon lemon juice)
1 teaspoon vanilla extract
½ cup granulated sugar (for coating)
2 teaspoons ground cinnamon (for coating)