Preheat oven to 350 degrees F.
Grate zucchini (courgette). The larger the grate, the more moist the crumb will be. A smaller grate will have a tighter, drier crumb. Do not drain the liquid.
In a small saucepan over low heat, melt butter. Add maple syrup, vanilla, stevia, and spices. Mix well. Remove sauce from heat.
In small bowl, whisk eggs.
In medium bowl, combine nut flour and baking powder. Add grated zucchini and mix well. Add whisked eggs and mix well. Add butter/spice sauce and mix well.
Grease muffin tin (12 muffins) with oil of choice.
Pour batter into greased muffin pan, using approximately ⅓ cup per muffin.
Bake 30-40 minutes. Note: Baking times may vary depending on your oven and the moisture content of the zucchini. the longer the muffins bake, the less likely they will stick to the pan.
Remove pan from oven and cool slightly before moving muffins to a cooling rack. Cool muffins and store in refrigerator for 3-5 days, or in freezer for several months.