Ingredients

  • 1/4 cup sugar
  • 18 teaspoon kosher salt
  • 1 egg white
  • 1 tablespoon water
  • Butter for greasing the baking sheet
  • 1 1/2 cups pecan halves
  • 1/2 cup pecans
  • 1/4 cup sugar
  • 6 sheets phyllo dough
  • 2 tablespoons unsalted butter, melted
  • 1 cup sugar
  • 6 tablespoons water
  • 1 cup heavy cream
  • 2 1/2 cups pumpkin puree
  • 2 tablespoons unsalted butter
  • 1/2 cup packed brown sugar
  • 1 teaspoon kosher salt
  • 1/2 teaspoon ground cinnamon
  • 2 teaspoons vanilla extract
  • 2 tablespoons heavy cream
  • 8 ounces mascarpone

Method

  • To make the pecans, preheat the oven to 225 degrees.
  • Mix the sugar and salt in a bowl.
  • In another bowl, whisk the egg white and water together until frothy.
  • Toss the pecans in the egg-white mixture to coat well.
  • Drain, then toss in the sugar mixture.
  • Grease a baking sheet and spread the pecans on it.
  • Bake until dry, about 45 minutes, stirring every 15 minutes.
  • Set aside.
  • To make the pastry, preheat the oven to 325 degrees.
  • Line 2 baking sheets with parchment paper and set aside.
  • Pulse the pecans and sugar together in a food processor until ground.
  • Lay 1 sheet of phyllo dough out on a work surface, keeping the rest covered with a damp cloth until ready to use.
  • Brush with butter and sprinkle with about 3 tablespoons of the ground pecan mixture.
  • Top with another sheet of phyllo, brush with butter and sprinkle with pecans.
  • Top with a third sheet of phyllo and brush with butter.
  • Trim the phyllo layers to make a 16-by-12-inch rectangle.
  • Cut into 16 4-by-3-inch rectangles.
  • Divide between the baking sheets and bake until golden brown, about 5 minutes.
  • Repeat with the remaining phyllo, butter and pecan mixture.
  • Set the pastries aside; you'll have extra.
  • To make the sauce, place the sugar in a medium saucepan and stir in the water.
  • Use a pastry brush dipped in water to wash down any sugar crystals on the side of the pan.
  • Place over medium heat and cook without stirring until mixture turns a deep caramel color.
  • Remove from heat and carefully add the cream.
  • Return the pan to the heat and stir until all the caramel is dissolved.
  • Set aside.
  • To make the filling, combine the pumpkin, butter, brown sugar, salt, cinnamon, vanilla extract and cream in a medium saucepan and place over medium heat.
  • Cook, stirring occasionally, until smooth and hot.
  • The napoleons can be prepared ahead up to this point.
  • Reheat the caramel sauce and the pumpkin filling.
  • To assemble, spread the mascarpone over 8 of the pastries, using about 2 tablespoons for each.
  • Top with another pastry and spread with about 1/4 cup of the pumpkin mixture.
  • Top with another pastry.
  • Coat 8 plates with caramel sauce.
  • Top with the napoleons and scatter the sugared pecans around them.
  • Serve immediately.