In a large mixing bowl, whisk together the flour, sugar, baking powder, salt, and cinnamon.
In another bowl, combine the milk, melted butter or oil, and vanilla extract.
Gradually add the wet ingredients to the dry ingredients, stirring gently until just combined. Avoid overmixing.
Fill the Muffin Tin:
Grease a muffin tin or line it with paper muffin liners.
Fill each cup about ¾ full with batter using a spoon or scoop.
Bake:
Place the muffin tin in the preheated oven and bake for 18–20 minutes, or until the muffins are golden brown and a toothpick inserted into the center comes out clean.
Allow the muffins to cool in the tin for 5 minutes before transferring them to a wire rack.
Coat with Cinnamon Sugar:
In a small bowl, mix the sugar and cinnamon for the coating.
Brush the tops of the warm muffins with melted butter.
Roll each muffin in the cinnamon sugar mixture to coat thoroughly.
Notes
Variations: Add chocolate chips, raisins, or chopped nuts for extra flavour and texture.
Vegan Option: Replace milk with plant-based milk and butter with coconut oil or vegan butter.
Glaze Option: Drizzle a powdered sugar glaze over cooled muffins for a sweeter finish.