Lubricate the bottom of the slow cooker with 1 tablespoon of vegetable oil. My slow cooker is a pressure cooker, plus it has a "Meat" function. I turn the valve of the slow cooker to the "Closed" position and set the "Meat" program for 1 hour. For those who do not have a slow cooker equipped with a pressure cooker function, the cooking time must be increased at least 2 times. If you do not have a meat program, first turn on the baking program for 40 minutes, after 20 minutes open the lid and turn the meat over. After the end of the program, turn on the "Extinguishing" program for another 1-1.5 hours. During this program, the juice will be released, and the meat will be able to cook faster. So, for the first time, it is better to control the cooking of meat by opening the slow cooker in an hour.