Brown Butter Rosemary Roasted Sweet Potatoes Recipe

  • YIELD:Serves 6 to 8
  • ACTIVE TIME:20 minutes
  • TOTAL TIME:2 hours 15 minutes to 2 hours 30 minutes

INGREDIENTS

  • 3 pounds (1.4kg) sweet potatoes, peeled and cut into 1/2-inch chunks
  • 3 tablespoons (45ml) vegetable or canola oil
  • Kosher salt and freshly ground black pepper
  • 1/2 packet unflavored gelatin (about 1 1/4 teaspoons; 4g)
  • 1/4 cup (60ml) homemade or store-bought low-sodium chicken stock
  • 1 stick unsalted butter (8 tablespoons; 115g)
  • 3 rosemary sprigs
  • 1 teaspoon (5ml) fresh juice from 1 lemon

DIRECTIONS

  1. 1.

    Place sweet potatoes in a large saucepan and cover with cold water. Heat water to 160°F (70°C) as registered on an instant-read thermometer. Cover and set aside for 1 hour.

  2. 2.

    Adjust oven racks to upper-middle and lower-middle positions and preheat oven to 400°F (200°C). Drain sweet potatoes and transfer to a large bowl. Toss with oil and season to taste with salt and pepper. Spread sweet potatoes on 2 rimmed baking sheets and roast until bottom sides are browned, about 30 minutes. Carefully flip potatoes with a thin spatula and roast until second side is browned and potatoes are tender, about 20 minutes longer.

  3. 3.

    Meanwhile, in a small container, sprinkle gelatin over chicken stock and let bloom for 5 minutes. Microwave until gelatin is dissolved, stopping and stirring as needed to help it dissolve, about 2 minutes.

  4. 4.

    In a small saucepan, melt butter over medium-high heat until foamy. Continue to cook, swirling pan, until milk solids in butter turn a deep hazelnut brown, 1 to 2 minutes. Remove from heat and add rosemary (don’t be alarmed; butter will foam and fizzle when rosemary is added), swirling to coat.

  5. 5.

    Add chicken stock to butter, return to medium heat, and bring to a simmer. Cook, swirling, until stock reduces slightly and sauce becomes rich and silky, about 3 minutes. Remove from heat, discard rosemary, and add lemon juice. Season with salt.

  6. 6.

    In a mixing bowl, toss potatoes with butter sauce and serve. Potatoes can be made in advance, tossed with sauce, and set aside until ready to serve; rewarm in the oven before serving.

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