01 -
Turn your oven on to 350°F and grease your muffin tin well.
02 -
Put egg, both sugars, melted coconut oil, sour cream, vanilla and cinnamon in a bowl and stir well.
03 -
Mix in your grated carrots and zucchini until everything's well combined.
04 -
In another bowl, mix flour, baking powder, baking soda and salt.
05 -
Pour dry ingredients into wet ingredients and stir just until mixed.
06 -
Gently stir in your chopped nuts if using them.
07 -
Spoon your batter into the greased muffin tin, filling each cup evenly.
08 -
Pop in the oven for 20 minutes, check with a toothpick - it should come out clean when done.