I cooked a 5 pound corned beef in very gently boiling water for 2 hours, turning every every half hour. (I am at 100 m above sea level if you are a purist.) After coming out of the boiling water, remove the surface fat and top with a glaze: I cup apricot preserves, 2 TBS of soy sauce and, ¼ cup of brown sugar. Then put it in the oven at 325F for 40 minutes. Let it stand 15minutes before slicing. I drizzled the juices and glaze on the sliced pieces. It was tender and delicious!