
Cut the bread into even 3/4-inch cubes, preferably using day-old or slightly stale bread for the best crunch.
Toss the bread cubes in a bowl with olive oil, garlic powder, onion powder, oregano, smoked paprika, salt, and pepper until evenly coated.
Spread the seasoned cubes in a single layer in the air fryer basket, avoiding overcrowding.
Cook at 400°F for 5-6 minutes, shaking the basket halfway through, until golden and crispy on all sides.
Let the croutons cool completely before storing — they will crisp up further as they cool.
Tip: The key to great croutons is even-sized cubes so they cook at the same rate. Rustic breads like sourdough or ciabatta work best.
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