SERVES 4 TO 6 ẵ cup homemade or low-sodium canned chicken stock ẳ cup buttermilk ẵ ounce (2 packets; about 1ẵ tablespoons) unflavored gelatin 2 slices high-quality white sandwich bread, crusts removed and torn into rough pieces 4 ounces button or cremini mushrooms, cleaned 3 anchovy fillets ẵ teaspoon Marmite 2 teaspoons soy sauce 1 teaspoon paprika 2 cloves garlic, roughly chopped (about 2 teaspoons) 1 small onion, roughly chopped (about ắ cup) 1 small carrot, peeled and roughly chopped (about ẵ cup) 1 stalk celery, roughly chopped (about ẵ cup) ... 2 cloves garlic, roughly chopped (about 2 teaspoons) 1 small onion, roughly chopped (about ắ cup) 1 small carrot, peeled and roughly chopped (about ẵ cup) 1 stalk celery, roughly chopped (about ẵ cup) ...SERVES 4 TO 6 ẵ cup homemade or low-sodium canned chicken stock ẳ cup buttermilk ẵ ounce (2 packets; about 1ẵ tablespoons) unflavored gelatin 2 slices high-quality white sandwich bread, crusts