Preheat oven to 350 degrees and line an 8x8 baking pan with parchment paper, leaving an overhang on both sides. Spray parchment and pan with coconut oil spray.
In a large bowl, whisk together the dry ingredients until combined and no clumps remain.
In a medium bowl, whisk together wet ingredients until well combined. Add wet mixture to dry mixture, folding together with a spatula until well combined. Transfer batter to prepared pan, smoothing top.
In a small bowl, mix together Cinnamon Sugar Topping and sprinkle uniformly atop batter. Bake on the middle oven rack for 20-22 minutes, rotating 180 degrees midway through cooking.
While cake is baking, whisk together Icing Glaze in a small bowl. You can add a little more milk if you need it thinner or a little more powdered monkfruit if you need it thicker.
While cake is warm, drizzle glaze evenly atop cake. Serve warm or room temperature. Store leftovers in an airtight container in the refrigerator. Enjoy!