zucchini and apple muffins

2 cups SR flour
3/4 cup brown sugar
1 zucchini grated
1 red apple, skin on, grated
1 cup buttermilk
90g unsalted butter, melted
2 eggs
2 tsp vanilla essence
icing sugar to serve

1. Preheat oven to 180C. Line a 12 hole muffin tin with paper cases. Sift flour and cinnamon into a large bowl. Add brown sugar, zucchini and apple and stir to combine.
2. Put buttermilk, butter, eggs and vanilla in a jug and whisk to combine. Make a well in centre of flour mix. Add wet mix to dry and stir to just combined.
3. Spoon mix into cases. Bake for 15-20 mins or until well risen, golden and firm to the touch.