1 Preheat the oven to 350°F (175°C). Butter two 5 by 9 inch loaf pans. 2 In a large bowl, mix together the sugar, eggs, and vanilla. Stir in the grated zucchini and then the melted butter. 3 Sprinkle baking soda and salt over the mixture and stir it in. Add the flour(s), a third at a time, stirring after each incorporation. Add the xanthan gum and mix. Sprinkle in the cinnamon and nutmeg over the batter and mix. 4 Divide the batter equally between the loaf pans. Bake for 55 minutes (check for doneness at 50 minutes) or until a wooden pick inserted in to the center comes out clean. Cool in pans for 10 minutes. Turn out onto wire racks to cool thoroughly. Yield: Makes 2 loaves.