Lending a distinctive sweet-and-sour flavor to Moroccan food, preserved lemon is a common ingredient in couscous, vegetable and meat tagines. Add thin slices to a fragrant stew, bake with lamb or toss in a fresh vegetable salad. This 10-ounce jar holds two whole preserved lemons packed in a mild brine solution, which keeps them silken and completely edible, rind and all. Product of Morocco.