Beef ribs:Place beef rib slabs in a single layer on a broiler pan. Bake at 350 degrees for 25 minutes, then turn ribs and continue baking until done 20 to 30 minutes more.
Pork ribs: Place pork ribs in a large stock pot and fill with water until ribs are covered. Bring to a boil; reduce heat and simmer ribs, skimming off any foam until ribs are fork tender, approximately 1 to 1 1/2 hours. Remove ribs. Reduce and save stock for soups.
Barbecue sauce: Heat oil in skillet and saute garlic,onion, and bell pepper until tender. Add remaining ingredients. Bring to a boil; lower heat and simmer for 5 minutes.
Place prepared ribs concave side down on broiler pan in a single layer. Brush or spoon on sauce and broil 8-10 minutes until sauce starts to brown. Turn ribs over and pour remaining sauce on ribs and continue to broil another 8-10 minutes.