* Rack Of ribs should be cut lengthwise across the bones. Have the butcher do this with his meat saw. ~------------------------------------------------------------------------Cook and stir onion in oil in 2 litre saucepan 2 minutes. Stir in ground red chiles, juniper berries, garlic and salt. Cover and cook 5 minutes, stirring occasionally. Stir in chocolate until melted. Pour water, vinegar and tomato paste into food processor workbowl fitted with steel blade or into a blender container. Add onion mixture and sugar; cover and process until well blended. Heat oven to 190ºC . Cut between pork back ribs to separate. Place in a single layer in roasting pan, pour sauce evenly over pork. Bake uncovered 30 minutes; turn pork. Bake until done, about 30 minutes longer.