When I was in the Philippines, I used to prepare Kare-kare by cooking the whole ox tail, cut in about 2 inches lengths and a bit of the beef skin overnight using charcoal. I would fill our "kalan" with lots of coal and just leave it boiling in a big pot with lots of water in it. It wasn't actually as tedious as others thought. The thing is, you just have to know whether the meat is done or not. You know that the oxtail pieces are ready if you can poke them and the skin with a fork and they are as soft as a chiffon cake.
1/2 lb of tripe sliced in bite sizes
1/2 lb of brisket
1 lb of ox tail
2 medium eggplant, cut in about 1.5 inches lengths
1 can of canned banana blossoms
about 10 pcs of long beans cut in 1.5 inches lengths
2 packs of Mama Sita Kare-kare Mix
1/2 cup of peanut butter
Cook the tripe, brisket and ox tail in a pressure cooker. Adding about 6 cups of water. Cook for about an hour. Once cooked, add the eggplant, banana blossoms and long beans. Add also the peanut butter. Mix kare-kare mix in 1/4 of water and add to the pot and stirring the pot occasionally to avoid the mix from burning at the bottom of the pot. Add the pechay last and make sure you don't overcook.