If you’ve been curious about celeriac, here’s your chance to try this slightly sweet yet mild-flavored root. It’s similar in texture to a turnip but when you cook it until tender it creates a creamy, dreamy, delicious soup! It’s tasty on its own as a pre-dinner appetizer or you can stir in your favorite cooked legumes, whole grains, and greens to make it a complete meal. Celeriac is a good source of vitamin K, vitamin C, B vitamins, and fiber so it’s definitely worth adding to your list of nutritious foods!
Heat a large stovetop pot on medium-high. Add the onions and cook until translucent, about 2–3 minutes.
Stir in the garlic and cook for 30 seconds.
Stir in the thyme and sage, cook for 30 seconds to release the fragrances.
Add the celeriac root and 3 cups of vegetable broth, bring to a boil then cover and lower the heat to a simmer until the celeriac is tender, about 15–20 minutes.
Once the celeriac root is tender, turn off the heat and remove the sage leaves.
Pour the cooked celeriac mixture and the remaining one cup of broth into a blender and puree, starting at a low speed and increasing to high, in batches if necessary, until completely smooth.
Add plant-based milk and lemon juice to the soup and blend on low.
Pour back into the pot and add white pepper and salt. Simmer for 15–20 minutes, adding additional broth if the soup gets too thick.
Taste for more salt and pepper or red pepper flakes, if desired.
Garnish with chives and an additional squeeze of lemon, if desired.