Preheat oven to 375 degrees

Take your sourdough loaf and slice it into bite-sized cubes. The size of the cubes can vary depending on your preference, but generally, 1-inch cubes work well.

Place the sourdough cubes into a large mixing bowl. Drizzle the olive oil or melted butter over the cubes and toss to coat evenly. Add optional herbs, salt and pepper.

Spread the seasoned sourdough cubes in a single layer on a baking sheet. Try not to overcrowd the pan, as this will prevent them from crisping up properly.

Place the baking sheet in the oven and bake for 15-20 minutes, tossing the croutons halfway through to ensure they brown evenly. The size you cut your croutons will determine how long it takes to get crispy. Keep an eye out and test for desired crunchiness.