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 Time10 minutesmins
Cook Time20 minutesmins
Course: Side Dish, Snack
Cuisine: American
Keyword: homemade sourdough croutons
Servings: 1baking sheet
Equipment
Mixing bowl
Food scale/measuring spoons
Large baking sheet
Parchment paper
Ingredients
250grams (4-6 slices)sourdough breadcubed
50grams (1/4 cup)melted butter OR extra virgin olive oil Use butter for richer flavor, EVOO for crunchier croutons.
1 &1/2 teaspoonsItalian seasoning
2grams (1/2 tsp)salt adjust to taste
Freshly ground black pepper to taste
1/2teaspoongarlic powder optional but adds flavor
1 tablespoonParmesan cheese optional
Instructions
Preheat oven to 375°F (190°C) and line a large baking sheet with parchment paper.
Cut sourdough into 3/4-1 inch cubes
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).
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.
Let cool completely, they’ll crisp up even more as they cool.
Storage: Store completely cooled croutons in an airtight container at room temp for up to 1 week.
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.