Pumpkin and Pecan Semifreddo with Caramel Sauce

A luxurious frozen Italian dessert featuring a spiced pumpkin mousse studded with pecans and toffee bits, all set on a gingersnap crust and served with warm caramel sauce. This elegant dessert combines the flavors of fall with the smooth, creamy texture of semifreddo.

8 servings
8 hr 52 min

Ingredients

  • 1 cup gingersnap cookie crumbs
  • 2 tablespoons golden brown sugar
  • 3 tablespoons unsalted butter
  • ¾ cup canned pure pumpkin
  • 1 tablespoon honey
  • ½ teaspoon ground ginger
  • teaspoon ground cinnamon
  • teaspoon ground cloves
  • teaspoon ground cardamom
  • teaspoon ground nutmeg
  • 1 cup sugar
  • ¼ cup water
  • tablespoons light corn syrup
  • 4 large egg whites
  • ½ cup pecans
  • ½ cup English toffee bits
  • 1 cup sugar
  • ¼ cup water
  • 2 tablespoons light corn syrup
  • ½ cup whipping cream
  • ¼ cup unsalted butter
  • ¼ cup crème fraîche
  • 1 teaspoon vanilla extract
  • teaspoon salt
  • 1 cup whipped cream

Cooking Instructions

  1. 1.

    Line 9 1/4x5 1/4x3-inch metal loaf pan with plastic wrap. Blend gingersnap crumbs and brown sugar in processor until combined. With machine running, slowly add butter; process until moist crumbs form. Press crumb mixture onto bottom and 2 inches up sides of prepared loaf pan. Chill 10 minutes.

    10 min

  2. 2.

    Whisk pumpkin, honey, and spices in large bowl to blend. Set aside.

    5 min

  3. 3.

    Stir 1 cup sugar, 1/4 cup water, and corn syrup in heavy medium saucepan over low heat until sugar dissolves. Increase heat and boil syrup without stirring until candy thermometer registers 248°F, about 10 minutes.

    10 min

  4. 4.

    Meanwhile, using electric mixer, beat egg whites in medium bowl to soft peaks. Gradually beat in hot sugar syrup; beat until mixture is cool, about 7 minutes.

    7 min

  5. 5.

    Fold 1/3 of egg white mixture into pumpkin-spice mixture to lighten. Fold in remaining egg white mixture. Fold in pecans and toffee bits. Spoon mixture into prepared crust. Cover with plastic wrap and freeze until frozen, about 8 hours. (Can be made 3 days ahead. Keep frozen.)

    480 min

  6. 6.

    Stir sugar, 1/4 cup water, and corn syrup in heavy medium saucepan over low heat until sugar dissolves. Increase heat and boil without stirring until syrup is deep amber color, occasionally brushing down sides of pan with wet pastry brush and swirling pan, about 8 minutes. Remove from heat. Whisk in 1/2 cup cream, butter, and then crème fraîche (mixture will bubble). Stir in vanilla and salt. (Can be made 1 day ahead. Cover and refrigerate. Stir over medium heat to rewarm before serving.)

    15 min

  7. 7.

    Wipe sides of loaf pan with hot wet cloth. Invert semifreddo onto platter; remove plastic. Cut into 1-inch-thick slices and serve with warm caramel sauce and whipped cream.

    5 min