Cut the Tempeh: Remove the tempeh from its packaging and chop it into small, roughly ¼-inch pieces.
Season: Place the pieces in a bowl and drizzle the coconut aminos and oil (if using) over them, stirring so they absorb the seasoning. Add the nutritional yeast, garlic powder, and sriracha, then toss everything together until evenly coated.
Air-Fryer Method: Spread the seasoned tempeh in the air fryer basket. Air fry at 380°F (193°C) for about 12–15 minutes, shaking the basket every 5 minutes, until the tempeh is crispy and golden.
Oven Method: Preheat your oven to 400°F (204°C). Line a baking sheet with parchment paper or use a nonstick sheet. Spread the seasoned tempeh out in a single layer. Bake for about 20 minutes, or until golden brown, tossing about every 7 minutes.
Notes
If skipping the oil, use a non-toxic nonstick baking sheet to prevent sticking and burning (see my favorites here). You may also want to increase the tamari or coconut aminos to 1½ tablespoons for extra flavor, especially when cooking oil-free.