01 - Preheat the oven to 350°F and line a 12-cup muffin tin with paper liners or grease lightly with butter or cooking spray.
02 - Cook the bacon in a skillet over medium heat until crisp, approximately 6-8 minutes. Drain on paper towels, then chop into small pieces.
03 - In a large bowl, whisk together the flour, granulated sugar, baking powder, baking soda, and salt until well incorporated.
04 - In a separate bowl, whisk together the milk, eggs, maple syrup, melted butter, and vanilla extract until smooth and combined.
05 - Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix—small lumps are acceptable.
06 - Gently fold in most of the chopped bacon, reserving approximately 2 tablespoons for sprinkling on tops.
07 - Divide the batter evenly among the 12 muffin cups, filling each about three-quarters full. Sprinkle the reserved bacon on top of each muffin.
08 - Bake for 18-20 minutes, or until a toothpick inserted into the center comes out clean and the tops are golden brown.
09 - Allow the muffins to cool in the pan for 5 minutes, then transfer to a wire rack to cool completely. Drizzle with additional maple syrup before serving warm.