Line a muffin tin with muffin liners and spray with nonstick spray. Preheat the oven to 425ºF. Make flax eggs by whisking the flaxseed or flaxmeal and water together. Set aside to thicken for about 5-10 minutes while you measure out your remaining ingredients.
2 Flax Eggs
Whisk oil, sugar, brown sugar, vanilla and flax eggs together in a large mixing bowl.
½ Cup Neutral Oil, 1 tsp Vanilla Extract, ⅝ Cup Granulated Sugar, ¼ Cup Brown Sugar , 2 Flax Eggs
Mix in the salt, seasonings, and leaveners until well-combined with the wet ingredients.
1 tsp Kosher Salt, 1 tsp Ground Cinnamon, 1 tsp Ground Cardamom, 1 tsp Ground Ginger, ¾ tsp Baking Soda, ¼ tsp Baking Powder
Add the flour and rolled oats, mixing until there are still pockets of dry ingredients visible. The mixture will look dry and craggy.
1 ½ Cup Whole Wheat Pastry Flour, ½ Cup Rolled Oats
Add the zucchini and nuts, stirring until uniform and the batter is moistened throughout (no pockets of dry visible).
1 ¾ Cup Shredded Zucchini, ½ Cup Walnuts or Pecans
Divvy the batter between 12 muffin cups; each should be about ⅔ full. Make sure to spray the paper liners with non-stick spray for the best results.
Sprinkle the topping ingredients (oats and sugar) evenly over the muffin tops.
2 Tbsp Rolled Oats, 2 Tbsp Turbinado Sugar (Sugar in the Raw)
Bake at 425ºF for 5 minutes, then open the door a crack, just briefly to reduce the trapped heat, and reduce the baking temperature to 375ºF. Continue baking at 375ºF for another 18-22 minutes, or until the tops are golden brown and a toothpick comes out clean. Cool in the pan for 5-10 minutes, then transfer to a wire rack to continue cooling.