THAI RARE BEEF WITH RED ONION AND KAFFIR LIME RECIPE   YEILDS FOUR   FOR THE SAUCE:   1 cup                      Lime juice (freshly squeezed) 1/3 cup                   Palm sugar (grated) 1 ½ Tbsp.                Nampla (thai fish sauce)   FOR THE BEEF AND MARINADE:   1 lb                          Beef top sirloin (fat removed) ½ cup                     Light soy ¼ cup                     Cilantro (chopped)   FOR THE SALAD:   1 each                     Large Red onion (shaved thin) 1/4 cup                   Scallions (bias cut ½ inch) ¼ cup                     Cilantro Leaves 3 each                     Kaffir lime leaves (chiffanade)   PROCEDURE:   1.                    In a small pot place lime, sugar and fish sauce, heat until sugar melts, chill 2.                    In a container marinate meat with soy and the cilantro stems for 1 to 2 hours 3.                    In a saute pan heat a small amount of oil and sear the top sirloin on both sides 4.                    Remove from pan and slice thin place in bowl. Discard marinade 5.                    In a large mixing bowl place sauce meat and all salad ingredients , toss and serve