Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         firm tofu
   2      tablespoons   soy sauce
   1      tablespoon    packed brown sugar
   1      tablespoon    ketchup
   1      tablespoon    horseradish
   1      tablespoon    cider vinegar
   1                    garlic clove -- minced

Preparation:

Slice tofu into 1/2-inch thick slices; place in glass baking dish. Whisk together soy sauce, brown sugar, ketchup, horseradish, vinegar and garlic; pour over tofu, turning to coat well. Cover and refrigerate for at least 1 hour or up to 24 hours, turning occasionally. Place tofu on greased frill, reserving marinade. Grill over medium-high heat, basting with marinade, for 3 minutes per side or until browned.