Chicken-Corn Chowder

Ingredients:
2 tablespoons butter
1/4 cup chopped onion
1/4 cup chopped celery
1 jalapeño pepper, seeded and minced
2 tablespoons all-purpose flour
3 cups 2% reduced-fat milk
2 cups chopped roasted skinless, boneless chicken breasts (about 2 breast halves)
1 1/2 cups fresh or frozen corn kernels (about 3 ears)
1 teaspoon chopped fresh or 1/4 teaspoon dried thyme
1/4 teaspoon ground red pepper
1/8 teaspoon salt
1 (14 3/4) can cream style corn