Adapted from Mollie
Katzen's
2 pounds asparagus
1 to 2 tablespoons butter
2 cups chopped onion
1 1/2 teaspoons salt
3 tablespoons unbleached white flour
2 cups water
2 cups warm milk (lowfat or soy is okay)
white pepper to taste
2 to 3 tablespoons minced fresh dill