Ingredients
2 celery ribs, chopped
1/4 cup chopped onion
1 jalapeno pepper, seeded and chopped
2 tablespoons butter
2 tablespoons all-purpose flour
3 cups milk
2 cups cubed fully cooked ham
2 cups cubed cooked potatoes
1-1/2 cups fresh or frozen corn
1 can (14-3/4 ounces) cream-style corn
3/4 teaspoon minced fresh thyme or 1/4 teaspoon dried thyme
1/8 to 1/4 teaspoon cayenne pepper
1/8 teaspoon salt

Directions
In a large saucepan, saute the celery, onion and jalapeno in butter until vegetables are tender. Stir in the flour until blended. Gradually add milk. Bring to a boil; cook and stir for 2 minutes or until thickened. Stir in the remaining ingredients. Bring to a boil. Reduce heat; cover and simmer for 10 minutes or until heated through. Yield: 8 servings (2 quarts). 

Source:  www.tasteofhome.com