Preheat the oven to 200C / 180C fan / gas 7 and line a 12-hole muffin tray with cases.

Core and peel one apple, then cut it into small cubes and leave it to one side.

Mix the dry ingredients in a large bowl.

In a separate bowl, mash the bananas until smooth, then add the coconut milk and coconut oil and stir together.

Combine the wet and dry ingredients, then add the apple cubes and give everything another really good mix.

Pour the mixture into the muffin cases.

Before baking, cut the remaining apple in half, core it, then cut each half into thin slices.

Top each muffin with three apple slices and a sprinkle of ground cinnamon.

Put the tray into the oven and bake for 25 minutes, until the muffins are golden and a knife inserted in the centre comes out clean.

Once cooked, leave the muffins to cool in their tray for at least 10 minutes, then transfer them to a wire rack to finish cooling or serve them warm out of the tin.