Prep the zucchini: Wash and dry the zucchinis.
Slice into 1/2-inch rounds or cut into batons (think thick fries). Pat dry again to remove surface moisture.
Set up the coating station: In one bowl, beat the egg. In another, mix pork panko (or almond flour), Parmesan, garlic powder, onion powder, smoked paprika, salt, and pepper.
Coat the zucchini: Dip pieces into the egg, shake off excess, then press into the crumb mixture.
Place on a parchment-lined sheet or plate. For extra crunch, chill the coated pieces for 10 minutes while the oven or air fryer heats.
Oven method: Preheat to 425°F (220°C). Arrange zucchini on a parchment-lined baking sheet.
Spray lightly with avocado oil. Bake 12–15 minutes, flip, spray again, and bake another 8–10 minutes until golden and crisp.
Air fryer method: Preheat to 400°F (205°C). Spray the basket.
Air fry in a single layer for 8–10 minutes, shake or flip, and cook 4–6 minutes more until browned and crunchy. Work in batches to avoid crowding.
Make the buffalo sauce: Melt the butter in a small saucepan over low heat. Whisk in the hot sauce until smooth and slightly thickened.
Keep warm.
Toss and serve: Transfer hot zucchini to a large bowl. Drizzle with buffalo sauce and toss gently to coat. Taste and add a pinch of salt if needed.
Serve right away with ranch or blue cheese and celery sticks.