It will cook down some as it simmers. The easiest way to thicken this chili is to puree 3/4 cup of the beans in a food processor. It creates a creamier base without altering the flavor of the chili at all. You can also make a cornstarch slurry with 1 Tbsp cornstarch and 3 Tbsp cooked broth. Stir until no lumps and then stir into the chili.