Celery Root Purée with Toasted Hazelnuts

From the kitchen of Carly

Creamy celery root and potato purée, luxurious with butter and cream, finished with toasted hazelnut oil and chopped hazelnuts for a subtle earthiness. A sophisticated side that tastes far more impressive than it is to make.

Prep
n/a
Cook
n/a
Total
n/a
Servings
4
Difficulty
medium

Ingredients

4 servings

  • 13 pounds celery root, peeled, cut into 1/2" cubes
  • 13 pounds russet potatoes, peeled, cut into 1" cubes
  • 1Kosher salt
  • 12/3 cup heavy cream
  • 12/3 cup whole milk
  • 11/2 cup (1 stick) chilled unsalted butter, cut into 1/2" cubes
  • 1Freshly ground black pepper
  • 11 tablespoon good-quality hazelnut oil
  • 11/4 cup coarsely chopped toasted hazelnuts
  • 1A food mill or potato ricer

Instructions

  1. Place celery root and potatoes in a large heavy pot. Add cold water to cover; season with salt. Bring to a boil over medium-high heat. Reduce heat; simmer until vegetables can be pierced with a fork, 20-25 minutes.

  2. Drain vegetables well. Pass vegetables through food mill or potato ricer into same pot.

  3. Meanwhile, bring cream and milk just to a simmer in a medium saucepan; remove from heat. Stir vegetable purée constantly over medium-low heat until excess moisture evaporates, about 2 minutes.

  4. Stir butter into purée a few pieces at a time, blending between additions. Remove from heat; slowly fold in cream mixture until a smooth purée forms. Season to taste with salt and pepper. DO AHEAD: Purée can be made 1 day ahead. Cover; chill. Rewarm in a microwave or in a heatproof bowl set over a large pot of simmering water.

  5. Strain hot purée through a medium-mesh sieve into a serving bowl (this makes the texture especially smooth and creamy). Drizzle with oil; scatter hazelnuts over.