- In a small saucepan, cook celery and onion in water for 10 minutes. Set aside.
- In a 2 1/2 quart saucepan, heat olive oil and whisk in flour, cooking until flour is absorbed.
- Add LACTAID® Fat Free Milk to flour mixture and cook, stirring constantly until thick. Add cooked celery and liquid. Season with salt, pepper and basil.