Cut or tear the bread into small pieces and place it into a food processor.
Process on high speed for about 30 seconds or until the bread resembles fine crumbs.
Transfer the crumbs to the baking trays spreading out into an even thin layer.
Place into the oven and bake for 5 -10 minutes - use a fork to stir the breadcrumbs, bake for 10 - 20 minutes, or until the breadcrumbs feel dry and are still light in color. Stir the crumbs one or two times more as they are drying.
Remove from the oven, leave the breadcrumbs on the trays to cool.
Transfer the breadcrumbs to an airtight container for storage.
Notes
Recipe makes 3 ¼ level cups of breadcrumbs.
You can use either fresh or stale bread but don't use bread that has gone mouldy.
Don't overbake the breadcrumbs to the point where it turns a dark golden brown. They should be dry and just lightly golden in color. If you do overcook the crumbs and use them for a coating for frying or baking, the crumbs will turn even darker and can look and taste burnt.
Occasionally stir the crumbs with a fork to move them around on the trays during baking for even drying.
The baking time is just a guide because oven temperatures do vary.
You can tell when the breadcrumbs are ready by feeling them. Pick up some crumbs and rub them between your fingers. They should feel dry and crumbly if not bake them for a little longer.