6 servings (serving size: about 1 cup)
Melt the butter in a large Dutch oven over medium heat.
Add onion, celery, and jalapeño; cook for 3 minutes or until tender, stirring frequently.
Add flour; cook 1 minute, stirring constantly.
Stir in milk and remaining ingredients.
Bring to a boil; cook until thick (about 5 minutes).