If you’re using your oven, preheat it to 400°F and line a baking sheet with parchment paper.
To blanch the Brussels sprouts, bring a large pot of water to a boil, and have a large bowl of ice water ready. Cook the sprouts in the boiling water for 5 minutes. Remove them from pot with a slotted spoon and place them in the ice water to keep them from cooking. After a few minutes, remove them from the ice water and blot them dry.
In a shallow bowl, mix together the chickpea flour and non-dairy milk. Let the mixture sit for a few minutes to thicken slightly.
In another shallow bowl, mix together the cornmeal, nutritional yeast, onion powder, garlic powder, sea salt, and pepper.
Dip each sprout in the chickpea flour mixture, then dredge them through the cornmeal mixture.
Place the sprouts on the baking sheet if you’re using your oven or in the basket of your air fryer, if you’re air frying them. Be sure to leave a little room between them so they don’t stick together.
If you’re using your oven, cook for 20-25 minutes or until the sprouts are crispy and golden brown. If you’re using your air fryer, cook on 400° for 10-13 minutes. With both cooking methods, the sprouts need to be flipped at the halfway point.
Remove from the oven and place in a serving dish. Sprinkle with the vegan parmesan. Serve with your favorite dipping sauce.