01 -
Set the oven to 350°F (180°C) and prepare a muffin tin with liners or lightly grease it to prevent sticking.
02 -
In a large mixing bowl, whisk together the flour, baking powder, baking soda, salt, and cinnamon until evenly combined.
03 -
In a separate bowl, stir the melted butter with the granulated and brown sugar until smooth. Add the eggs, milk, and vanilla extract, mixing until fully incorporated.
04 -
Gradually pour the wet ingredients into the dry ingredients, stirring gently with a spatula until combined. Avoid overmixing.
05 -
Divide the batter evenly among the muffin cups, filling each about three-quarters full. Bake for approximately 20 minutes, or until a toothpick inserted into the center comes out clean.
06 -
While the muffins bake, mix the cinnamon and granulated sugar in a small bowl and set aside.
07 -
Once the muffins have slightly cooled, brush their tops with melted butter and dip them into the cinnamon sugar until evenly coated.
08 -
Enjoy the muffins warm for the best flavor and texture.