Heat the oven to 350F. Line a cupcake tin with liners.

In a large bowl whisk all the dry ingredients together. Grate the apple. In another bowl whisk all the wet ingredients together and add the apple. Add the wet ingredients to the dry ingredients and fold until just combined.

Fill the cupcake liners with an ice-cream scoop of batter to about 3/4 way full.

Bake for 10mins, then rotate the pans. Bake for about another 10mins until a toothpick in the center comes out clean.

Cool cupcakes in the tin for 10mins, then carefully transfer to a wire rack to cool completely before frosting.

Frosting
Beat softened butter and light brown sugar together with an electric mixer on medium high till light and fluffy. Add the cream cheese and beat on low until fully mixed in. Add the maple syrup, turn up to medium high and beat for 3-5mins until light and fluffy.