Step 1: Brown the Ground Beef: Set the Instant Pot to the "Saute" function. Add the ground beef and cook, breaking it up with a spoon, until browned. Drain off any excess grease.
Step 2: Saute Aromatics: Add the chopped onion and green bell pepper to the Instant Pot. Cook, stirring occasionally, until the vegetables are softened, about 5 minutes. Add the minced garlic and cook for another minute until fragrant.
Step 3: Add Remaining Ingredients: Stir in the diced tomatoes, kidney beans, black beans, corn, tomato sauce, chili powder, cumin, smoked paprika, and cayenne pepper (if using). Season with salt and pepper to taste.
Step 4: Pressure Cook: Pour in the beef broth. Stir to combine all ingredients. Secure the Instant Pot lid, ensuring the valve is set to "Sealing." Select the "Manual" or "Pressure Cook" function and set the cooking time to 25 minutes at high pressure.
Step 5: Release Pressure: Once the cooking time is complete, allow the Instant Pot to naturally release pressure for 10 minutes. After 10 minutes, carefully quick-release any remaining pressure by moving the valve to the "Venting" position. Be cautious of escaping steam.
Step 6: Serve: Remove the lid and stir the chili. Taste and adjust seasoning as needed. Serve hot, topped with your favorite chili toppings such as shredded cheese, sour cream, chopped green onions, or avocado.
Optional Tips and Substitutions:
For a spicier chili, add a chopped jalapeo pepper along with the onions and bell peppers.
Substitute ground turkey or ground chicken for ground beef.
Add a tablespoon of brown sugar or molasses for a touch of sweetness.
For a thicker chili, mash some of the beans with a fork before serving.
Top with a dollop of plain Greek yogurt instead of sour cream for a healthier option.