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Decadent Toffee Pecan and Sweet Potato Slab Pie

Decadent Toffee Pecan and Sweet Potato Slab Pie

Having a crowd over for Christmas dinner? Satisfy all the sweet tooth cravings with this decadent toffee, pecan, and sweet potato slab pie.

By Melissa Sperka

Mark Boughton Photography / Styling by Teresa Blackburn

Time to indulge in all the holiday cheer! If you had to choose amongst all the sweets and desserts on the table, a piece of this slab pie might be the one to top it all. There is plenty to go around!

See Also
OWYN Gluten Free Donuts

This article was originally posted as, “Sweet Potato Slab Pie” on Relish.

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  • Author: Melissa Sperka
  • Yield: 18 servings 1x


  • 1 17-oz pkg frozen puff pastry, thawed (2 sheets)
  • 4 cups cooked (pureed sweet potatoes (4 or 5 sweet potatoes))
  • 1 cup sugar
  • 1 1/4 cups heavy cream
  • 5 eggs (lightly beaten)
  • 1 tablespoon plus 1 teaspoon pumpkin pie spice
  • 1 tablespoon vanilla extract
  • 1/2 teaspoon salt
  • 1 cup sweetened whipped cream

For the streusel

  • 2/3 cup vanilla wafer crumbs
  • 1/4 cup cold unsalted butter (cubed)
  • 1/2 cup pecan pieces
  • 1/2 cup toffee bits (like Heath)


  1. Preheat oven to 375°F.
  2. Lightly coat a 15 x 11-inch jellyroll pan with cooking spray.
  3. On a lightly floured surface, roll each sheet of puff pastry into a 10 x 12-inch rectangle. Place sheets on pan and press evenly onto the bottom and sides. Trim edges, if needed.
  4. Prick pastry with a fork. Cover with aluminum foil and spread dried beans or pie weights on top. Bake 10 minutes.
  5. Remove from oven, remove beans or pie weights and foil, and reduce oven temperature to 350°F.
  6. In a medium bowl, whisk together sweet potatoes, sugar, cream, eggs, pumpkin pie spice, vanilla and salt until well combined. Pour evenly over crust. Bake 30 minutes.
  7. To make streusel, place cookie crumbs in a bowl. Add butter and cut into crumbswith a fork until mixture resembles cornmeal. Stir in pecans and toffee.
  8. Sprinkle streusel over pie and bake 30 minutes, or until filling is set. Cover pastry edges with foil if needed to prevent overbrowning.
  9. Let cool completely, then refrigerate. Serve chilled with whipped cream.
  • Category: Dessert


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