01 - Heat olive oil in a large Dutch oven or heavy-bottomed pot over medium heat. Add ground beef and cook, breaking up with a spoon, until browned and no longer pink. Drain excess fat if necessary.
02 - Add diced onion and cook for 3–4 minutes until translucent. Stir in garlic, bell peppers, and jalapeño; sauté for another 5 minutes until softened.
03 - Mix in tomato paste, chili powder, cumin, smoked paprika, cayenne, oregano, salt, black pepper, and brown sugar. Cook, stirring, for 2 minutes to bloom the spices.
04 - Add crushed tomatoes, diced tomatoes, and beef broth. Stir well, scraping any browned bits from the bottom of the pot.
05 - Bring to a simmer, then reduce heat to low. Cover partially and cook for 45 minutes, stirring occasionally.
06 - Add kidney beans and cook uncovered for another 15–20 minutes, until the chili has thickened to your desired consistency. Taste and adjust seasonings.