Prep: Preheat the oven to 350° F and spray or line a regular muffin tin. To make mini muffins, see notes below.
Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, salt, and cinnamon.
Add in Wet Ingredients: add in the maple syrup, milk, vanilla, eggs, melted butter and stir until just incorporated. DO NOT overmix.
Muffins: Scoop the batter into the muffin tin, roughly 2/3 the way full.
Toppings: Add any toppings that you want to use.
Cook: Place the muffin tin into the oven, and bake for 14-18 minutes or until just golden brown.
Cool: Let cool for 5-10 minutes, and serve.