"The First Course On A Warm Summer'S Evening" Soup - cooking recipe

Ingredients

1 large onion, diced
2 tablespoons butter
2 lbs sweet potatoes, peeled
2 cups fat free sodium free chicken broth
2 cups water
1/2 teaspoon ginger, ground
1/2 teaspoon thyme
2 cups milk
salt and pepper
parsley, chopped

Preparation

Melt the butter in a soup pot.
Add the onions and cook.
(over medium heat) until just soft.
Cut the sweet potatoes into 1/3-inch slices.
Add to the onions and cook for 1 minute.
Add the broth, water, ginger and thyme.
Bring to a boil, reduce the heat and simmer until all ingredients are soft (about 20 minutes).
Carefully puree the soup (in small batches) using a blender or food processor.
Return the mixture to the pan and whisk in the milk.
Check the seasonings.
Chill thoroughly.
Served cold, garnished with parsley.