INGREDIENTS:
4 pounds pork loin
MARINADE:
48 ounce carbonated mineral water
2 big onions
1 lemon
3 table spoons mayonnaise
0.5 white vinegar
black pepper
salt

Cut onions into large rings. Put onion rings into large bowl. Squeeze lemon juice on top. Add the rest of marinade ingredients with salt and pepper to taste. Cut pork loin into 1 inch cubes and mix it with marinade. Cover and let it sit in a cool place for 24 to 48 hours. Put meat on skewers (you can combine meat with onion rings from marinade) and grill it on direct high heat rotating skewers often. Grill until juices from meat are clear and meat is golden brown. Serve with steamed rice, fresh tomatoes, and ketchup. You can also add fresh onion rings kept in white vinegar for 1 hour.