Chef John's Garlic Parmesan Croutons

Begin by preheating your oven to the optimal temperature of 300 degrees Fahrenheit (or 150 degrees Celsius), ensuring it reaches this mark before proceeding. Next, prepare a baking sheet by lining it with a silicone mat designed for baking.

To initiate the flavor infusion process, combine olive oil and minced garlic in a small bowl. Allow this mixture to sit at room temperature for approximately 3 hours, permitting the flavors to meld together harmoniously.

In a large bowl, place bread cubes and pour the garlic-infused oil over them. Utilize a strainer to separate the solids from the liquid, then toss the bread until it is evenly coated with oil. Add 1/2 cup of shredded Parmigiano-Reggiano cheese, a blend of Italian herbs and spices, paprika, black pepper, salt, and cayenne pepper. Thoroughly combine these ingredients with the bread until it is evenly coated.

Spread the bread cubes out in a single layer on the prepared baking sheet, forming an even and uniform surface.

Place the bread cubes in the preheated oven for 15 minutes, followed by an additional 15 minutes to achieve a crispy texture. Utilize a spatula to gently push the croutons together, forming a compact rectangular shape on the baking sheet.

Finish by sprinkling the remaining 1/4 cup of Parmigiano-Reggiano cheese over the top of the croutons. Continue baking until the cheese is melted and the croutons are crunchy, requiring an additional 10 to 15 minutes.