Preheat the oven to 375 degrees F (190 degrees C). Grease 20 muffin cups.
Mix flour, sugar, baking soda, and baking powder together in a bowl. Add buttermilk, eggs, oil, maple flavoring, and vanilla extract. Stir in crumbled bacon.
Fill muffin cups 2/3 full of batter.
Bake in the preheated oven until a toothpick inserted into a cupcake comes out clean, 17 to 20 minutes.