Asian Soup Stock

Asian Soup Stock

Ingredients: 12 cups water 1 large onion, skins left on and cut into chunks 1 head garlic, cut in half crosswise 1 two-inch piece fresh ginger, sliced 3 stalks celery, chopped 3 to 4 cups chopped shiitake mushrooms 1 stalk lemongrass, chopped 1 tsp crushed red pepper...