Cream of Scallion Soup

Years ago I would get this great tasting
beef and scallions at a local restaurant
that I liked very much. Here I lost the
beef and made a soup out of fresh scallions.

Ingredients:
4 bunches of scallions, sliced
1/2 cup of un-salted butter
1/4 to 1/2 cup of flour
1 cup of light cream
1 cup of white wine
2 cups of chicken stock

Directions:
Saute sliced scallions,
including some green in butter.
Remove scallions and add enough
butter to make about 1/4 to 1/2 cup.
Stir in flour and cook lightly
as for making a white sauce.
Gradually add liquids, whisking constantly.
When smooth, stir in cooked scallions.
(Or cook scallions in microwave, then add.)
Garnish with a few uncooked green slices.