Salt can balance a dish that is too sweet, but it can also bring out the natural sweetness of some foods. That's why salted caramel is such a treat; salting the caramel both balances and enhances its sweetness. Salting tomatoes and peppers also brings out their sweeter flavors. Start by adding 1/8 teaspoon of salt to your chili. Stir it in completely and let the chili simmer for 5 minutes or so. If the chili still tastes too sweet, try another 1/8 teaspoon of salt. If that doesn't balance the sweetness, it might be best to try another method because over-salting will give you too-sweet chili that is now also too salty.