Harvest Asparagus Tomato Soup

This is one I haven't made in awhile, which is a shame, because it is very good!

1 1/2 cups cooked asparagus
5 cups chicken stock
1 medium onion, chopped
1 carrot, coarsely chopped
1 tablespoon chopped parsley
1 bay leaf
2 cups canned tomatoes
1/8 teaspoon freshly ground pepper
1/2 teaspoon thyme
1 teaspoon salt
pinch of ground cloves
1/2 teaspoon sugar
2 tablespoons butter, melted
2 tablespoons flour

Combine all soup ingredients except butter and flour.  Cover and simmer for 45 minutes.

Whirl in food processor (or use a hand blender right in the pot) until fairly smooth.

Blend butter and flour together.  Stir into soup.

Simmer 20 to 30 minutes.