HELPFUL TIP: It is easy to make your own croutons and the best are made with good sourdough bread. Cut off the crusts of the bread and cut into ½-inch cubes. Toss with 4 tablespoons olive oil, sea salt or garlic salt, and dried herbs of choice. Spread in a single layer onto a small sheet pan and roast in a low oven for about 30 minutes, tossing occasionally, until golden brown.