⭐ Vegetable Broth (Best Nut-Free Option)
1 cup vegetable broth per 1 cup beef brothVegetable broth works well as a substitute because it contains a blend of vegetables and seasonings that provide umami and aromatic qualities similar to beef broth. The natural glutamates from vegetables like mushrooms, carrots, and celery help mimic the savory depth of beef broth.
For best results, use a high-quality or homemade vegetable broth with a rich flavor profile. Avoid overly watery or bland commercial versions, as they can reduce the soup’s overall taste complexity.
The final soup will be lighter and less meaty but still flavorful and balanced, making it suitable for vegetarian or vegan diets without sacrificing depth.