1. In a large saucepan heat the oil and cook the onion and pepper until the onion is transparent. Add the red and green peppers and stir. Cook for 1 minute, add the chicken broth and half-and-half, and bring to a boil.
2. Reduce the heat and add the corn, tomatoes and salt. Simmer uncovered for 30 minutes. Serve with chopped fresh coriander.