Banana Zucchini Muffins

### Ingredients
* 2 1/2 cups all purpose flour
* 1 1/2 tsp baking soda
* 1 1/2 tsp baking powder
* 1 tsp salt
* 4 bananas, mashed
* 1 cup zucchini, grated
* 1/3 cup brown sugar
* 1 egg, beaten
* 1/2 cup butter, melted
* 1 tsp vanilla
* *optional* 1/3 cup shredded unsweetened coconut
* *optional* 1/3 cup chopped walnuts

### Method
1. Pre-heat oven to 350 degrees F (180 degrees C)
1. Combine sugar, bananas, zucchini, butter, egg and vanilla in a mixing bowl
1. Mix remaining ingredients in a large bowl
1. Pour wet over dry and mix just until combined
* **DO NOT OVERMIX YOUR MUFFINS**
1. Portion into muffin tins and bake for 20-25 minutes
* *For mini-muffin tins, bake 15-20 mins*