Preheat your oven to 350°F.
Start by candying your walnuts. Add the walnuts to a small frying pan set over medium-low heat. Toast, tossing frequently, until the nuts begin to smell aromatic and take on a golden color. It’s important not to multitask while you’re toasting your nuts, as they’ll burn at the first sign of neglect. Once the nuts are golden and toasted, after about 5-8 minutes, lower the heat to the lowest setting and add the butter, maple syrup, and a small pinch of salt. The butter will melt and the maple syrup will begin to bubble around the edges of the pan. Quickly toss to thoroughly lacquer the nuts, and toast for another minute or two — until the maple takes on a thicker, stickier consistency. Add the cinnamon and give everything one final stir. Set the nuts aside to cool, then roughly chop.
To make the zucchini bread, begin by combining the dry ingredients. Add the flours, arrowroot, spices, salt, baking soda and powder to a small mixing bowl. Stir well to combine. Add the grated zucchini, 1 cup of maple sugar, yogurt, olive oil, eggs, and vanilla extract to a large mixing bowl and mix well to combine. Using a large non-stick spatula, gently fold the dry ingredients into the wet ingredients — mixing well to ensure no clumps remain. Fold in the chopped walnuts.
Pour the batter into Breadwinner, and sprinkle with the remaining 1 teaspoon of maple sugar. Bake for 60-70 minutes, or until a toothpick inserted in the center comes out clean. Let the bread cool in the tin for 20 minutes, then gently transfer the bread to a cooling rack and cool until it comes to room temperature.
Wrap the bread in parchment paper and store in the refrigerator for up to 5 days. Enjoy at room temperature or briefly warmed through, preferably slathered in butter.