1.Drain The Block Of Tofu, And Freeze Overnight. Thaw, And Cut Into Quarters. Squeeze Out Any Moisture By Hand, Then Wrap In Paper Towels, And Squeeze Again. Crumble Into A Medium Bowl. 2.Add Celery And Green Onion To The Tofu. Stir In Mayonnaise, Soy Sauce And Lemon Juice Until Well Blended.