Open-faced "Turkey" Sandwiches with Golden Gravy

Ingredients

• extra-firm tofu

  cut horizontally in half
  1 lb
• mushroom broth or soaking liquid from dried shiitake mushrooms
  1 cup
• reduced-sodium soy sauce
  ½ cup
• vegetable oil
  2 Tbsp
• brown rice vinegar
  1 Tbsp
• finely shredded fresh ginger
  1 Tbsp
• cloves garlic

  minced
  2 large
• Golden Gravy
  1¼ cups
• bread (preferably whole-grain)

  lightly toasted
  4 slices
• mashed potatoes and jellied cranberry sauce for serving (optional)
  1 unit