Step 1

Preheat oven to 350 degrees.

Step 2

Lightly grease a 9×5 loaf pan with butter.

Step 3

Combine flour, cinnamon, baking soda, baking powder, and salt well in a medium bowl.

Step 4

In a stand mixer or bowl, mix melted butter (or melted coconut oil) and brown sugar for about five minutes or until light and fluffy.

Step 5

Add in eggs, vanilla, sourdough starter, and grated zucchini.

Step 6

Fold dry ingredients into the wet ingredients a little bit at a time until just incorporated.

Step 7

Gently fold in any other add-ins you would like. Pecans, walnuts, and chocolate chips for example.

Step 8

Pour into a greased pan. You could also line your loaf pan with parchment paper.

Step 9

Bake for 50-60 minutes. Test bread at 50 minutes with a toothpick or cake tester.

Step 10

Allow to cool in the pan for one hour before slicing.