Prep the pans: Heat your oven to 350°F (175°C). Grease a mini muffin tin or line it with paper cups.
This recipe makes about 30–36 bites, depending on your tin.
Drain the zucchini: Grate the zucchini and place it in a clean kitchen towel. Squeeze firmly over the sink until most of the liquid is out. You want it damp, not dripping.
Mix dry ingredients: In a medium bowl, whisk spelt flour, baking powder, baking soda, salt, cinnamon, and nutmeg.
Break up any flour clumps so the batter stays even.
Mix wet ingredients: In a large bowl, whisk eggs, oil, maple syrup, brown sugar, vanilla, and yogurt until smooth and slightly glossy.
Combine: Add the dry ingredients to the wet. Stir gently with a spatula until you see the flour mostly disappear.
Fold in zucchini and mix-ins: Add the drained zucchini and any optional mix-ins. Fold gently until evenly distributed. Do not overmix; it can make the bites tough.
Fill the cups: Spoon the batter into the mini muffin wells, filling each about 3/4 full.
Bake: Bake for 11–14 minutes, until the tops spring back when touched and a toothpick comes out with just a few moist crumbs.
Cool: Let the bites rest in the tin for 5 minutes, then transfer to a rack to finish cooling.
They’ll firm up as they cool.