3 pork and pineapple kebabs with sweet and sour sauce Recipes

boneless pork, cut into 40 1 inch pieces (shoulder or butt is nice), balsamic vinegar, garlic, minced, dried hot chili flakes, canola oil, ketchup, white vinegar, brown sugar, soy sauce, grated ginger, salt, sesame oil, ripe pineapple, peeled,cored and cut into 30 wedges, tomatoes, green bell peppers, cut into 1 inch chunks

red-wine vinegar, garlic clove, minced and mashed to a paste with 1/2 tsp salt, dried hot red pepper flakes, vegetable oil, boneless trimmed pork shoulder or pork loin, cut intoforty 1-inch pieces, ketchup, distilled vinegar, sugar, soy sauce, salt, oriental sesame oil, a 4-lb pineapple, peeled, cored , and cut into thirty 3/4-inch-thickwedges