01 - Heat vegetable oil in a large pot or Dutch oven over medium heat. Add ground beef and cook, breaking up with spoon, until browned and no longer pink, about 6–8 minutes. Drain excess fat if necessary.
02 - Add diced onion, red and green bell peppers, and jalapeño. Sauté until softened, about 5 minutes.
03 - Stir in minced garlic and cook for 1 minute until fragrant.
04 - Add chili powder, cumin, smoked paprika, cayenne, oregano, salt, and black pepper. Stir well to coat meat and vegetables.
05 - Mix in tomato paste and cook for 2 minutes, stirring frequently.
06 - Add crushed tomatoes, kidney beans, and beef broth. Stir until well combined.
07 - Bring to a simmer. Reduce heat to low, cover, and simmer for 45 minutes, stirring occasionally.
08 - Taste and adjust seasonings. For thicker chili, simmer uncovered for additional 10–15 minutes. Serve hot with desired toppings.