This recipe is tasty, but I made a few changes. I don't use all of the stock/water. Just add enough stock to mostly cover the meat. I add the white sweet potatoes at the end of cooking, in the last 30-40 minutes. Otherwise they overcook and become mush. The quartered oranges gave the stew a bitter taste, so now I use the zest of one orange, and the juice of two oranges. I also added some shallots to saute with the jalapenos. And if you want some more meat in the stew, you can add some chuck steak or short ribs to braise along with the oxtails.