Coat the bottom of a saucepan with nonstick cooking spray. Add onion; cook and stir over medium heat until tender, about 4 minutes. Add r4 cups corn; and stir until softened, about 5 minutes. Add 2 cups broth; bring to a boil. Reduce heat; cover and simmer for 10 minutes or until corn is tender. Cool slightly. Puree in a blender or food processor until smooth; return to pan. Add red pepper, rosemary, thyme, pepper, cayenne, and remaining corn and broth; cook, and stir for 10 minutes or until corn is cooked.
Yield; 4-6 servings