MELT margarine in a 2-quart saucepan.
ADD flour, stir and let bubble for a couple of minutes.
REMOVE from heat and add chicken broth, stirring constantly. Return to heat and add milk.
COOK and stir until slightly thickened.
ADD broccoli, dillweed and green onion. Cook until it bubbles gently. Do NOT boil. Stir often.
TIP: This is best if made the day before. Heat and serve.