Potato Celeriac Soup Recipe

Celeriac is as strange-looking as vegetables come, but don’t let that fool you. It’s perfect in a soup, and it shines as a partner to potato. It has an earthy, unique flavor reminiscent of celery, to which buttery potatoes lend a tasty contribution. Garlic and thyme bring out the best in these two main ingredients while also adding both a spicy bite and an herbal aroma. The end result is delicious—a cozy soup for just the right season.

Garnished soups
Final soup (Image: Kristan Raines)

Things You'll Need

  • 2 tbs olive oil, plus more for drizzling

  • 2 ½ cups leeks, white part only sliced into half moons

  • 2 garlic cloves, minced

  • 1 lb Yukon gold potatoes, peeled and cut into 1-inch cubes

  • 1 lb celeriac root, peeled and cut into 1-inch cubes

  • 4 1/2 cups low-sodium chicken or veggie stock

  • 5-6 sprigs of thyme

  • salt and pepper

  • creme fraiche, for garnish

  • heavy-bottomed pot

  • blender

Step 1

Add 2 tbs of olive oil to a large pot set over medium heat. Once warmed, add the sliced leeks and a pinch of salt. Sauté the leeks until softened, about 4 minutes. Add the garlic and cook for one additional minute.

Softening leeks
Step 1 (Image: Kristan Raines)

Step 2

Add the 4 1/2 cups of stock, celeriac, potatoes and thyme, and bring everything to a gentle simmer. Cover and let simmer for 25-30 minutes, or until the veggies are fork tender.

Adding stock
Step 2 (Image: Kristan Raines)

Step 3

Set aside about 1 cup of stock from pot. Working in batches, transfer the veggies and remaining broth to a blender and blend until smooth. Pour soup back into the pot and season with salt to taste.

Pureed soup
Step 3 (Image: Kristan Raines)

Tip

If you prefer a thinner soup, simply add the remaining 1 cup of stock in increments to the blender until desired soup texture is achieved.

Step 4

Garnish hot soup with creme fraîche, a drizzle of olive oil, and a crack of pepper.

Garnished soup
Final (Image: Kristan Raines)

Tip

This soup will serve 4-6

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