Beet & Grapefruit Salad

1 bunch beets (save greens for braising later) 1 grapefruit, cut into supremes 1/2 red onion, slivered 2 Tbs. chopped cilantro (optional) 1 Tbs. sherry or white wine vinegar salt and pepper Wash beets and place in heavy casserole dish. Read on!