This is my sister's recipe--hence the name. She made it for a family gathering and it stayed warm in a crockpot for ages, without falling apart or getting dry. But for that many people, I would be tempted to make a couple or three different recipes.
Rita's Chicken
4 lb. chicken (thighs or drums, if using boneless, a little less.
1 envelope onion soup mix
1-8 oz jar apricot jam
1/2 small bottle Kraft Russian dressing
pepper and garlic powder to taste (no salt needed because of the onion soup mix)
Season the chicken. Combine all other ingredients and pour over chicken. Marinate 24 hours and then bake at 350 degrees for about 1 1/2 to 2 hours. Great served with rice.