Ingredients

  • n4 tablespoons unsalted butter
  • 3 tablespoons extra-virgin olive oil
  • 1 onion, sliced
  • Kosher salt
  • 1 bunch celery, chopped
  • 1 small celery root (about 12 ounces), peeled and chopped
  • 1 bay leaf
  • 4 cups low-sodium chicken broth
  • 1 cup heavy cream
  • 1 cup mixed fresh herbs (such as parsley, tarragon and/or dill)
  • 1/4 teaspoon celery salt
  • Celery Leaves
  • Celery Salt
  • Cooked prosciutto
  • Toasted sliced almonds
  • Fried leeks

Method

  • Melt the butter with the olive oil in a large pot or Dutch oven over medium-high heat.
  • Add the onion, season with 1/2 teaspoon salt and cook, stirring occasionally, until softened but not browned, about 4 minutes.
  • Add the celery, celery root and 1 teaspoon salt.
  • Cook, stirring occasionally, until the celery is tender, about 7 minutes.
  • Add the bay leaf, chicken broth and 2 cups water and bring to a boil.
  • Reduce the heat to medium low and cook until the celery root is very soft, about 20 minutes.
  • Discard the bay leaf.
  • Add the heavy cream and return to a simmer, then remove from the heat and let cool slightly.
  • Working in batches, transfer the soup to a blender and puree until smooth, adding some herbs to each batch; return to the pot and reheat if needed.
  • Stir in the celery salt and serve with toppings.
  • Photograph by Justin Walker