⭐ Vegetable Broth (Best Fat-Free Option)
1/4 cup per 1/4 cup chicken brothVegetable broth works well because it provides a mild umami and savory flavor similar to chicken broth, which is essential for the depth of Béarnaise sauce. The broth’s liquid content also helps in deglazing and emulsifying the sauce.
To ensure success, use a low-sodium vegetable broth to avoid overpowering the delicate tarragon and shallot flavors. Avoid broths with strong vegetable notes like celery or carrot that might dominate the sauce.
Compared to chicken broth, vegetable broth keeps the sauce light and balanced, preserving the classic Béarnaise flavor while accommodating vegetarian preferences.