I don’t know why I never considered making muffins in the air fryer. I simply halved the recipes (and mix), then I used silicone muffin cups. I used the bake function on my air fryer, so the bake time was about the same. But you may want to adjust your baking time depending on your air fryer. I would just keep an eye on it the first time around. The silicone muffin cups have made quite the difference in the amount of options I have when using the air fryer now.