Preheat your oven to 350°F (175°C). Prepare your muffin tins and set to the side.

Take your eggs and butter out of the fridge and let them come to room temperature before beginning. In a large bowl, whisk together the eggs, butter, honey, and vanilla together until well combined. Add the zucchini and mix.

In a separate bowl mix the dry ingredients (flour, cocoa powder, baking soda, baking powder, salt, and cinnamon) and add to the wet ingredients until just combined. The batter should be thick.

Spoon into the muffin tins until almost full.

Bake for about 20-25 minutes until a knife inserted in the center comes out clean.