Step 3
Add the black beans, great Northern beans, tomatoes with green chiles, tomato sauce, chicken stock, brown sugar, corn, vinegar, chili powder, cumin, cilantro, salt, and cayenne pepper to the slow cooker. Cook on High until the beans are tender, 3 to 4 hours. Stir the diced green, red, and yellow bell peppers into the chili and cook another 20 minutes.