Step 1

Put potatoes, celery, water, chicken base, salt, and pepper in large pot and simmer 20 minutes.

Step 2

Add milk and bring to 170 degrees F.

Step 3

In bowl blend melted margarine and flour till smooth. Then add 1 quart of soup broth (from the pot) and blend. Using wire whisk, add back to pot and blend well. Simmer 20 minutes.