Preheat the oven to 180 degrees Celsius / 350 degrees Fahrenheit and line the muffin pan with muffin cups if you want. You don't have to if you are using a silicone muffin pan.
In a large mixing bowl, combine the dry ingredients.
Wash the apple and carrot and if necessary peel them. Grate the apple and carrot or cut into smaller pieces and put into a pot with water. Allow to come to a boil and cook for about 10 minutes until soft.
Now fill the muffin cups until they are about ¾ full and bake for about 20-25 minutes.
Once done, take out of the oven and leave for a few minutes in the muffin tin. They take the muffin cups out of the muffin tin and allow to cool on a wire rack