*For very mild chili, omit the crushed red pepper flakes. **For more 'heat' in your chili, add cayenne pepper. I suggest using ¼ teaspoon increments of the cayenne pepper and adding until the desired flavor has been reached.To thicken your chili: *Try using a few tablespoons of cornmeal rather than the standard slurry of cornstarch (or additional flour) for an added depth of flavor! **If you are on a specialty diet (such as keto, paleo, low-carb or gluten-free), tomatoes are a natural thickening agent. Omit the flour and add more tomatoes, then let them cook down to thicken your chili!