The ground beef should be thoroughly browned in a big pot, breaking it up into little pieces while it cooks.
Sauté the garlic and onion in the cooking pot until the onion becomes translucent, usually around 5 minutes.
Add the tomato paste, red kidney beans, cumin, salt, black pepper, paprika, and cayenne pepper along with the diced tomatoes, cumin, and chili powder (if using).
Blend in the beef broth by stirring it thoroughly.
Bring the mixture to a boil, then lower the heat to a simmer, stirring regularly, for at least 30 minutes.
Serve hot and garnish with your preferred ingredients, such as sour cream, cheese, and chopped green onions