Celery and Onion Cream Soup

It is a simple and light cream soup good in sunny spring day. Here is the recipe.

For two
Celery 1 stick
Onion 1/2
Milk 1C
Chicken stock 1/2C
Flour 1T
Butter 1t
Salt, Pepper

Slice celery and onion
Sautee them with butter
Add flour and continue to sautee
Add chicken stock slowly, keep stirring
Once smooth, cook with lid on for 15 min.
Add Milk
Add salt and pepper to tast