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+ baking sheet
5.0 from 2 votes

Homemade Sourdough Croutons

Homemade sourdough croutons are the easiest way to turn leftover bread into crispy, buttery bites for salads and soups, plus simple air fryer and oven instructions!

Prep Time 10 mins
Cook Time 20 mins
Course: Side Dish, Snack
Cuisine: American
Keyword: homemade sourdough croutons
Servings: baking sheet

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Equipment

  • Mixing bowl
  • Food scale/measuring spoons
  • Large baking sheet
  • Parchment paper

Ingredients

  • 250 grams (4-6 slices) sourdough bread (cubed)
  • 50 grams (1/4 cup) melted butter OR extra virgin olive oil (Use butter for richer flavor, EVOO for crunchier croutons.)
  • 1 &1/2 teaspoons Italian seasoning
  • 2 grams (1/2 tsp) salt (adjust to taste)
  • Freshly ground black pepper (to taste)
  • 1/2 teaspoon garlic powder (optional but adds flavor )
  • 1 tablespoon Parmesan cheese (optional )

Instructions

  1. Preheat oven to 375°F (190°C) and line a large baking sheet with parchment paper.
  2. Cut sourdough into 3/4-1 inch cubes
  3. In a large bowl, toss bread cubes with melted butter (or EVOO), Italian seasoning, salt, pepper, and garlic powder until evenly coated. Add your Parmesan cheese and toss to combine (if using).
  4. Spread in a single layer on a parchment-lined baking sheet. Bake for 15–20 minutes, tossing halfway, until golden and crisp. Tip: If they brown too fast, lower oven to 350°F and extend bake time.
  5. Let cool completely, they’ll crisp up even more as they cool.
  6. Storage: Store completely cooled croutons in an airtight container at room temp for up to 1 week.
  7. For longer storage, freeze up to 3 months and re-crisp in oven or air fryer.

Notes

Flavor: Feel free to adjust seasonings to your preference. 

How do I make sourdough breadcrumbs from croutons? Once the croutons are fully cooled, add them to a food processor and pulse until the crumbs reach your desired texture, fine or coarse. Store the breadcrumbs in a sealed jar or container for up to 1 month at room temperature or freeze for long-term storage.

Air fryer instructions: Air fry at 350°F (175°C) for 6–8 minutes, shaking the basket every couple of minutes. Let the croutons cool completely so they crisp up as they cool.

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