Ingredients

• 3/4 teaspoon kosher salt, plus more for cooking water

• 2 (9-ounce) packages refrigerated three-cheese tortellini (such as Buitoni)

• 2 large egg yolks

• 1/4 cup unsalted butter

• 2 medium garlic cloves, finely chopped (about 2 teaspoons)

• 1 1/2 cups heavy whipping cream

• 4 1/2 ounces Parmigiano-Reggiano cheese, finely grated (about 1 cup)

• 3 cups cubed or torn cooked chicken breast (about 14 ounces)

• 2 teaspoons coarsely chopped fresh flat-leaf parsley

• 1 teaspoon fresh thyme leaves

• 1 teaspoon grated lemon zest (from 1 lemon)

• Black pepper