Generously grease a 24 cup mini muffin pan with nonstick spray. Preheat oven to 350℉.
Combine flour, baking powder, baking soda, salt and sugar in a medium bowl. Sift together with a wire whisk.
In another bowl, stir buttermilk, egg, maple syrup and melted butter until just combined. Add wet ingredients to dry ingredients and stir with a spoon until combined. Stir in chocolate chips. Reserve a few chips to sprinkle on the tops. Bake for 8-9 minutes.
Let cool slightly and remove from the pan. You may need to use a toothpick around the edges to separate the pancake muffins from the pan.
Serve immediately with warmed butter if you like or even just with maple syrup.
Notes
If you’re having a problem with your chocolate chips sinking to the bottom, you can try rolling the chocolate chips in flour first, or use mini chocolate chips.