French Dip au Jus Recipe: How to Make It

Ingredients

• 1-1/2 teaspoons beef base
• 1 teaspoon dried thyme
• 1 beef rump roast or bottom round roast (3 pounds), cut in half
• 1 medium onion, quartered
• 1/2 cup reduced-sodium soy sauce
• 2 garlic cloves, minced
• 1 bay leaf
• 1/2 teaspoon pepper
• 8 cups water
• 2 tablespoons Dijon mustard
• 2 loaves French bread (1 pound each), split and toasted
• 12 slices part-skim mozzarella cheese
• 1 jar (4-1/2 ounces) sliced mushrooms, drained