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Pumpkin Slab Pie

A square slice of Pumpkin Slab Pie topped with whipped cream and a sprinkle of cinnamon on a white plate.

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Pumpkin Slab Pie is the perfect fall dessert that serves a crowd. Made with a buttery homemade crust and a creamy spiced pumpkin filling, this pie is baked in a sheet pan and is ideal for holidays like Thanksgiving.

  • Author: Emily
  • Prep Time: 20 minutes
  • Cook Time: 45 minutes
  • Total Time: 1 hour 5 minutes
  • Yield: 12–20 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

  • 2 ½ cups all-purpose flour
  • 1 teaspoon salt
  • 1 cup unsalted butter, chilled
  • 68 tablespoons ice cold water
  • 4 large eggs
  • 1 ½ cups granulated sugar
  • 2 (15-ounce) cans pumpkin puree
  • 1 teaspoon salt
  • 2 teaspoons ground cinnamon
  • 1 teaspoon ground ginger
  • ½ teaspoon ground cloves
  • ½ teaspoon ground nutmeg
  • 2 ½ cups evaporated milk
  • 1 egg (for egg wash)
  • 1 tablespoon water (for egg wash)

Instructions

  1. In a medium bowl, combine flour and salt. Cut in chilled butter until the mixture resembles coarse crumbs.
  2. Add ice water one tablespoon at a time until the dough holds together. Wrap and chill for 1–2 hours.
  3. Roll the dough into a ¼-inch thick rectangle and fit it into a quarter-sheet or jelly roll pan. Trim and crimp edges.
  4. In another bowl, beat eggs and sugar until dissolved. Add pumpkin puree, salt, cinnamon, ginger, cloves, and nutmeg. Stir in evaporated milk until smooth.
  5. Pour the filling into the crust. Brush the edges with egg wash.
  6. Bake at 400°F (200°C) for 15 minutes, then reduce to 350°F (180°C) and bake for 25–30 minutes more, until the center is set.
  7. Cool completely at room temperature before slicing and serving.

Notes

  • Blind baking the crust is optional but helps keep the bottom crispy.
  • Use canned pumpkin puree for consistent results.
  • Substitute brown sugar for a deeper flavor.
  • Wrap and refrigerate leftovers for up to 4 days.
  • Freeze individual squares for longer storage—up to 2 months.