Air Fryer Sourdough Croutons

My air fryer sits on the counter like a trusty friend, and one afternoon while hunting for ways to use up a slightly stale sourdough loaf, I discovered these golden little nuggets could transform a boring salad into something I actually wanted to eat. The garlic hit me first when they came out—sharp and toasted, nothing like the raw bite you'd expect. I tossed them onto a simple green salad that night and couldn't stop reaching for more, and suddenly this humble side dish became the reason people asked for seconds.

I made a batch for a dinner party once and set them out as a snack while we waited for the main course, and my friend Sarah grabbed a handful and said, 'These are dangerous'—she meant it as a compliment, but honestly, she wasn't wrong. Within five minutes, the bowl was nearly empty, and I realized I'd created something people actually want to eat on its own, not just as a garnish.

Ingredients

• Sourdough bread, 4 cups cubed (about 200 g): Use day-old bread if you have it—it's drier and becomes crispier, plus you're not wasting fresh loaves on croutons.
• Extra-virgin olive oil, 3 tbsp: This coats every surface and helps the seasonings stick; don't skimp on quality here because it's the flavor foundation.
• Garlic, 2 cloves minced: Fresh garlic toasts beautifully in the air fryer and becomes sweet and mellow, not harsh.
• Dried Italian herbs, 1 tsp: A blend works best, but if you only have oregano or basil, that's fine—use what you love.
• Sea salt, ½ tsp and black pepper, ¼ tsp: Season to your taste; these are starting points, not rules.
• Fresh parsley, 2 tbsp chopped (optional): Adds brightness after cooking and makes them look intentional, not rushed.

Instructions

Heat your air fryer:

Set it to 375°F (190°C) and let it warm for a couple minutes while you prep—this matters more than you'd think because the bread needs immediate heat to crisp up properly.

Build your seasoning blend:

Whisk together the olive oil, minced garlic, herbs, salt, and pepper in a large bowl, then take a moment to smell it before you add the bread. That aroma is exactly what's about to coat every crouton.

Coat the bread cubes:

Toss the sourdough cubes into the oil mixture and keep tossing until every piece looks evenly coated and glistening—don't rush this step or you'll end up with some dry cubes hiding in the basket.

Arrange in the basket:

Spread the cubes in a single layer in your air fryer basket, leaving a little space between them so air can circulate and make them crispy on all sides. If they're crowded, work in batches.

Fry and shake:

Set the timer for 6 to 8 minutes, and about halfway through, shake the basket so the cubes toast evenly and don't develop any burnt spots on one side.

Finish and cool:

When they're golden and the edges sound crispy when you tap them, transfer them to a bowl, toss with fresh parsley if you're using it, and let them cool for a few minutes—they'll continue to crisp up as they rest.

Save

There's something magical about serving homemade croutons to people—it's such a small gesture, but they always seem genuinely touched that you made them from scratch. It changed how I think about leftovers, honestly.

The Case for Day-Old Bread

Fresh bread will work, but it tends to stay a bit chewy inside while the edges get crispy, which isn't really what you want from a crouton. Day-old sourdough is already slightly drier, so it crisps up evenly all the way through, and the tanginess of sourdough actually deepens when it's been sitting for a day. I started saving the last few slices of my loaves specifically to make these, and it feels less wasteful than throwing them out.

Storage and Second Uses

These keep for about a week in an airtight container, but honestly, in my house they rarely make it past three days because people keep opening the cupboard looking for a snack. The cool thing about making a big batch is that you can crumble some into soups for extra texture, toss them into Caesar salads the way restaurants do, or even eat them straight as a crunchy companion to cocktails.

Flavor Variations to Explore

Once you nail the basic version, you start seeing all the ways you can pivot—a sprinkle of Parmesan before frying makes them taste almost savory and umami-rich, or you can swap the Italian herbs for za'atar if you're in the mood for something with more spice and nuttiness. I've also played with adding a pinch of smoked paprika for depth, and sometimes I'll toss them with a tiny bit of honey after they cool if I want them slightly sweet alongside a bitter green salad.

• Parmesan adds a salty, aged richness that makes them taste restaurant-quality.
• Smoked paprika brings warmth and a subtle smoky note that pairs beautifully with tomato-based soups.
• A whisper of honey after cooling creates an unexpected sweet-savory contrast that keeps people reaching back for more.

Save

These croutons taught me that some of the best things happen when you're trying to use up what's already in your kitchen instead of buying something new. They've become my go-to solution for brightening up simple meals and impressing people with minimal effort.

Recipe Questions & Answers

→ What type of bread works best for these croutons?

Day-old sourdough bread cut into 1-inch cubes is ideal for a firm, chewy texture that crisps well when air fried.

→ Can I add other herbs besides Italian herbs?

Yes, fresh or dried herbs like rosemary, thyme, or basil can be used for varied flavor profiles.

→ How do I ensure the croutons get evenly crisped?

Shake the air fryer basket halfway through cooking to promote even browning and crispness.

→ Can I prepare these croutons without an air fryer?

Alternatively, bake them in an oven at 375°F, turning occasionally until golden and crunchy.

→ How should I store leftover croutons?

Keep cooled croutons in an airtight container at room temperature for up to one week to maintain crunch.

→ Can I add cheese to enhance flavor?

Sprinkle grated Parmesan on the cubes before air frying for a savory, cheesy twist.