Combine butter and onion in 2 quart casserole. Cook at high 1? to 2 minutes. Blend in flour. Gradually add broth, milk, salt, pepper and nutmeg; stir until smooth. Cook at medium 7 to 9 minutes, or until soup slightly thickened; stir occasionally. Add broccoli and puree in food processor or blender. Return to casserole. Cook at medium 3 to 4 minutes; stir once.

Variation:

Cream of Chicken soup, follow above procedure. With butter and onion , cook ? pound chicken meat, diced 2? to 3 minutes, stir once. Use 2 cups chicken broth and 1 cup milk; omit broccoli.