Try this Beef and Black Bean Chili recipe, or contribute your own.
Timing the initial browning phase dictates the depth of flavor in this dish. Heat vegetable oil in the pressure cooker insert until it shimmers before introducing the extra-lean ground beef and yellow onions. Cook this mixture for 8 to 10 minutes. Stir occasionally to ensure even contact with the metal base. This process triggers the Maillard reaction, forming complex savory compounds on the surface of the meat. Excess moisture must evaporate completely during this window. If liquid pools in the insert, the meat will steam rather than brown.
Securing the lid and setting the pressure valve to sealing initiates the high-pressure cooking cycle. Program the appliance for 5 minutes at high pressure. Water boils at a higher temperature under pressure, forcing heat into the ingredients rapidly. This thermal environment softens the cellular walls of the yellow onions and hydrates the chili powder spices quickly. Natural release is mandatory here. Allowing the pressure to drop naturally over approximately 15 minutes prevents rapid steam expansion from rupturing the black beans.
Texture depends entirely on how the canned elements interact with the heat. Fire-roasted crushed tomatoes contain natural acids that firm up pectin in the bean skins, preventing them from dissolving into mush. Rinsing the canned black beans removes excess surface starches that can scorch against the base of the insert. Green chiles add capsaicin oils that disperse evenly through the liquid during the pressure cycle. Avoid a quick-release method, as the sudden drop in atmospheric pressure forces boiling liquid out of the valve and splits the beans open.