I don't think you're going to find an a recipe for either of these that is the recipe of what you ate. Both Veracruz and Ixtapa are cities in Mexico that will have very different aspects, levels, flavors, traditions, variations to their food. Food from Ixtapa (on the west coast) will have a very different taste than food from Veracruz (on the east coast) and the meals that you had were that specific chef's interpretation of how pollo (chicken) from those areas would be prepared. I used to live in Mexico and was amazed at how much a dish with the same common name could vary not just region to region, city to city, but household to household. They carry a lot of tradition in their food, a lot more than anybody here in the states does anyway. Oh man, now you got me thinking about Mexico! I would live there if I thought it possible... and if my wife would go with me!