For a spicier chili, add a pinch of cayenne pepper or a finely chopped jalapeño along with the other seasonings. Feel free to adjust the amount of chili powder to suit your preferred level of spiciness. This chili tastes even better the next day, as the flavors have time to meld together. Store leftovers in an airtight container in the refrigerator. Serve with your favorite toppings, such as shredded cheese, sour cream, chopped cilantro, or a dollop of Greek yogurt.