Add the rest of the ingredients to the pot and cook over medium heat, uncovered, stirring occasionally for approximately 45 minutes. You may need to add more vegetable broth or water if the chili becomes too dry. 1 red bell pepper, diced, 2 carrots, diced, 2 stalks celery, diced, 2 tsp chili powder, 2 tsp dried oregano, 2 tsp paprika, 1 tsp cumin, 1/2 tsp salt, 1/4 tsp red pepper (chili )flakes, 1/4 tsp pepper, 30 ounces canned red kidney beans, drained and rinsed, 28 ounces canned diced tomatoes, 15 ounces canned white kidney beans, drained and rinsed, 2 cups vegetable broth, or water, 1 tbsp cocoa powder