⭐ Mushroom Broth (Best Vegan Option)
1/4 cup per 1/4 cup beef brothMushroom broth provides a plant-based umami source through natural glutamates, which can mimic some of the savory qualities of beef broth. This works well to maintain depth in Béarnaise sauce, especially for those avoiding meat.
To avoid overpowering the tarragon and vinegar notes, use a light mushroom broth and strain well. Avoid broths with strong mushroom flavors that can dominate the sauce.
The final sauce will have a subtle earthiness and slightly muted brightness, but still retain a rich and savory character.