Escabeche Turkey with Pickled Vegetables

Before the development of canning, pickling was one of the most important preserving methods, along with salting, drying, and smoking. Particularly in warm countries, pickling was favored for the way it used acid to stop or retard the growth of bacteria. Some historians credit the Egyptians and Romans for developing this technique, which was brought into Spain and then to Mexico. Turkeys, especially ones raised naturally, have a rich, dense flesh and dark, meaty flavor that can stand up to—and are improved by—heartier, more complex flavors like this escabeche. My favorite garnish for each taco serving is a slim feathery frond—no more than two inches long—from the top of a small stalk of fennel. It looks pretty, has good flavor, and is delicious with this filling.