We gave the classic Puerto Rican pernil a slightly smoky flavor twist with Smoked Paprika. If desired, regular paprika may be substituted for the smoked paprika.
Place garlic, onion, vinegar, oil and seasonings in blender container. Cover. Blend on high speed until smooth. Place pork in large roasting pan. Using a sharp knife, make deep slits all over pork. Rub seasoning mixture all over pork, pressing into slits. Arrange pork roast, skin side up, in pan. Cover pan with foil.
Refrigerate 8 hours or overnight for extra flavor. After refrigerating, pour 1/2 cup water into pan. Cover pan with foil.
Preheat oven to 350°F. Roast pork 4 hours or until very tender, removing foil halfway through cook time.