Pumpkin Chiffon Slab Pie


Use whipping cream and cinnamon to make the perfect topping for this pumpkin slab pie. For even more spice flavor, chill overnight.

Prep Time:
45 mins
Cook Time:
25 mins
Additional Time:
4 hrs
Total Time:
5 hrs 10 mins
1 9x13-inch pie


  • 8 ounces amaretti cookies, crushed

  • ½ cup unsalted butter, melted

  • ¼ teaspoon kosher salt

  • 1 (.25 ounce) package unflavored gelatin

  • ¼ cup cool water

  • 1 (15 ounce) can pumpkin puree

  • 5 pasteurized eggs, separated

  • ½ cup packed light brown sugar

  • 1 teaspoon ground cinnamon

  • ½ teaspoon vanilla extract

  • ¼ teaspoon kosher salt

  • ¼ teaspoon ground allspice

  • teaspoon ground cloves

  • ¼ teaspoon cream of tartar

  • 1 ½ cups whipping cream

  • 3 tablespoons confectioners' sugar

  • 1 pinch ground cinnamon


  1. Preheat the oven to 350 degrees F (175 degrees C). Set a baking stone, baking steel, or inverted baking sheet on the center rack.

  2. Stir together crushed amaretti, butter, and salt in a bowl with a firm spatula, pressing mixture against bowl until well combined. Dump into a 9x13-inch quarter-sheet pan or a 9x13-inch baking pan. Pat and press mixture along sides and bottom of pan. Use a metal measuring cup to compact mixture for a smooth, firm crust.

  3. Bake crust on top of hot stone until lightly browned, 15 to 20 minutes.

  4. Meanwhile, for the filling, sprinkle gelatin over cool water in a small bowl and let stand. Fill a large bowl with ice water to make an ice bath.

  5. Fill medium saucepan halfway with water and bring to a simmer over medium-high heat.

  6. Whisk pumpkin, egg yolks, brown sugar, cinnamon, vanilla, salt, allspice, and cloves together in a large heatproof bowl until well combined. Set bowl over, but not touching the simmering water.

  7. Cook, stirring constantly with a rubber spatula, until mixture registers 170 degrees F (86 degrees C), about 10 minutes. Remove from heat, add gelatin mixture, and stir until melted. Set bowl over ice bath and whisk as it cools to slightly warmer than room temperature, about 85 degrees F (29 degrees C). Remove from ice bath.

  8. Whip egg whites in a large bowl with a hand mixer set on high until frothy. Add cream of tartar and continue whipping until whites are shiny and medium peaks form, another 3 or 4 minutes. Add 1/3 to the pumpkin mixture; stir until incorporated and mixture is lightened. Gently fold in remaining whites with a rubber spatula until no large white streaks remain. Pour into the cooled crust.

  9. Chill, covered, until firm, about 4 hours.

  10. Whip cream with a hand mixer in a large bowl, increasing speed as soft peaks form. Add confectioners' sugar, 1 tablespoon at a time, beating until whisk leaves a trail and forms firm peaks when lifted.

  11. Spoon cream into a piping bag with an open tip or a zip-top plastic bag with a 1/2-inch corner snipped off. Pipe dollops of varying sizes over pumpkin filling, allowing some filling to show through. Dust with cinnamon. Cut into squares.

Cook's Note:

The whites are only whipped, not cooked, in this fluffy chiffon. If you can't find pasteurized eggs, you can use regular egg yolks, substitute 1 cup whipping cream for the whites, and omit the cream of tartar.

Nutrition Facts (per serving)

339 Calories
23g Fat
30g Carbs
5g Protein
Nutrition Facts
Servings Per Recipe 12
Calories 339
% Daily Value *
Total Fat 23g 29%
Saturated Fat 12g 62%
Cholesterol 129mg 43%
Sodium 217mg 9%
Total Carbohydrate 30g 11%
Dietary Fiber 1g 4%
Total Sugars 26g
Protein 5g
Vitamin C 2mg 9%
Calcium 52mg 4%
Iron 1mg 5%
Potassium 147mg 3%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.