Arrange the bread pieces in a single layer on a baking sheet. If you have any thick pieces of bread, cut or tear them into smaller pieces for more even drying.
Toasted the bread for 10-15 minutes, stirring or flipping the bread halfway through, until the bread is crunchy.
Allow the bread to cool completely.
Place the bread in the bowl of a food processor. Pulse until the crumbs reach your desired consistency. The longer you process the bread crumbs, the finer the crumbs will be.
To make seasoned breadcrumbs, add the corresponding ingredients above to one cup of plain bread crumbs.
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Notes
Storage. Transfer the bread crumbs to an airtight container or plastic bag. Toasted bread crumbs will keep at room temperature for up to one month. Measure out and use just as you would store bought bread crumbs.Freezing. If you are unable to use up your homemade bread crumbs within a month, you can freeze them instead! I recommend using a freezer bag for this so you can squeeze out all the air and prevent freezer burn. Store for up to three months. Allow the bread crumbs to come to room temperature before using.