Set 1/2 cup broth aside. In dutch oven stir broth and all of contents from Uncle Ben''s rice package. Bring to boil. Simmer 10 minutes. Stir occasionally. Stir in broccoli and raw chicken pieces. Simmer covered for 15 minutes. Stirring occasionally. Stir flour in reserved broth and add to rice mixture. Boil. Stir in half and half. Cook 3-4 minutes until heated through.