Savory Cheese Soup - cooking recipe

Ingredients

1/4 c. chopped onion
3 Tbsp. butter
1/4 c. flour
1/4 tsp. salt
1/8 tsp. pepper
1/8 tsp. garlic salt
2 c. milk
1 c. chicken broth (14 1/2 oz.)
1/2 c. carrots
1/2 c. celery
1 1/2 c. Cheddar cheese
3/4 c. Mozzarella, shredded

Preparation

In large pan, saute onion in butter until tender.
Add flour, salt, pepper and garlic salt; stir until smooth.
Gradually add milk.
Cook and stir until thickened and bubbly.