Preheat the oven to 350°F. Grease a standard 12-muffin tin or line with paper liners. Prepare the batter for Banana Bread Cockaigne. Divide the batter among the muffin cups and bake until a toothpick inserted in 1 or 2 of the muffins comes out clean, 15 to 20 minutes. Let cool for 2 to 3 minutes in the pan before transferring to a wire rack.