Ingredients

  • 1 cup cake flour
  • 1/2 cup all-purpose flour, plus extra for dusting
  • 2 egg yolks
  • 2 tablespoons extra-virgin olive oil
  • 1/2 teaspoon kosher salt
  • 1/4 to 1/2 cup water, plus extra, as needed
  • 12 ounces frozen spinach, thawed and drained
  • 3 ounces thinly sliced prosciutto, finely chopped
  • 1/2 cup whole milk ricotta cheese
  • 1/3 cup grated Parmesan
  • 1 egg yolk
  • 2 tablespoons extra-virgin olive oil
  • 1 tablespoon unsalted butter, chopped, room temperature
  • 1/4 teaspoon kosher salt
  • 1/4 teaspoon freshly ground black pepper
  • 1 egg
  • 1 tablespoon water
  • Butter, for greasing the baking dish
  • 3 tablespoons unsalted butter, melted
  • 3 tablespoons grated Parmesan
  • 2 cups warm tomato-basil marinara sauce
  • Special equipment: 2 double layer-thick pieces of cheesecloth, each piece 8 by 16 inches in size, 4 (6-inch) pieces kitchen twine

Method

  • For the pasta: In a food processor, pulse together the cake flour, all-purpose flour, egg yolks, olive oil, and salt.
  • With the food processor running, gradually add the water in a steady stream until the mixture forms a ball, adding extra water, 1 tablespoon at a time, if needed.
  • Place the dough on a floured work surface and knead for 2 minutes until smooth.
  • Cut the dough in half and shape into discs.
  • Wrap in plastic wrap and refrigerate for 30 minutes.
  • For the filling: Place the drained spinach in the middle of a clean kitchen towel.
  • Fold the towel in half and squeeze out any excess moisture.
  • Place the spinach in a medium bowl.
  • Add the prosciutto, ricotta cheese, Parmesan, egg yolk, olive oil, butter, salt, and pepper.
  • Using a fork, mix until combined.
  • On a floured work surface, roll out the chilled dough into 2 (8-inch diameter) circles.
  • Place the filling in the center of each circle and, using a spatula, spread evenly over the dough leaving a 1/2 to 3/4-inch border of uncovered dough.
  • In a small bowl, beat the egg and water together until smooth.
  • Using a pastry brush, lightly brush the edges of the dough with the egg mixture.
  • Roll the dough into logs, jellyroll style, and pinch the edges together to seal.
  • Roll each log in the prepared cheesecloth and secure the ends with kitchen twine.
  • Oil a baking sheet.
  • Bring a large pot of salted water to a boil over high heat.
  • Reduce the heat to a simmer.
  • Lower the logs into the water and cook for 15 minutes.
  • Using 2 pairs of tongs to hold the twine, remove the logs, one at a time, and place on the prepared baking sheet until cool enough to handle, about 10 minutes.
  • Preheat the broiler.
  • Butter an 8 by 8-inch glass baking dish.
  • Remove the kitchen twine and cheesecloth.
  • Using a sharp knife, cut each log into 12 (1/2-inch thick) slices.
  • Fan the slices in 3 overlapping rows in the prepared baking dish.
  • Using a pastry brush, brush the top of the slices with the melted butter and sprinkle with Parmesan.
  • Broil until golden, 3 to 4 minutes.
  • Serve with warm marinara sauce.