Food waste can sneak into our kitchens in small ways, like the crust of a loaf of bread that nobody wants, a half-eaten hot dog bun, or a piece of sourdough that has become hard. Instead of throwing these leftovers away, you can use a simple method called the Freezer Bread Bag. This trick allows you to save your stale bread in a gallon freezer bag until you have enough to make tasty homemade breadcrumbs or croutons.
Making your own breadcrumbs is not only a great way to reduce waste but also enhances your cooking. Once your freezer bag is full, turning those bread scraps into golden breadcrumbs is easy.
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Source: Kitchen, by recipes