In a large saucepan, combine the broth, potato, corn, garlic, marjoram, thyme and pepper. Bring to a boil. Reduce heat; cover and simmer for 15-20 minutes or until potatoes are tender.
Combine flour and milk until smooth; gradually add to vegetable mixture. Bring to a boil; cook and stir for 2 minutes or until slightly thickened. Reduce heat; stir in cheese until melted. Add the chicken; heat through. Yield: 2 servings.