Save leftover bread and dry it (either out on your counter or in the oven at
250F for about 15 minutes) until completely dry and crisp.
Using your food processor, blender, or by rolling with a rolling pin between
sheets of waxed paper, make fine bread crumbs. Save these crumbs. They are
useful in a wide variety of ways.
When you have an ample supply, take out 2 cups and mix with the remaining
ingredients noted above.
Store in an airtight container in your refrigerator and use within 2 months.