Name: Pumpkin Mousse Pie Recipe
Prep time: 15 min
Cook time: 10 min
Total time: 4 h 25 min
Cuisine: American
Ingredients: 2 cups graham cracker crumbs; 3 tbsp brown sugar; 1/2 tsp salt; 1/2 cup unsalted butter, melted; 15 oz pumpkin puree (1 can); 7 oz marshmallow crème (Jet-Puffed preferred); 1/4 cup brown sugar; 2 1/2 tsp pumpkin pie spice; 1 tsp vanilla extract; 8 oz frozen whipped topping, thawed (such as Cool Whip or homemade whipped cream)

Jump to Recipe· 4.1 from 62 reviews

There is nothing quite like the creamy, airy delight of a Pumpkin Mousse Pie Recipe to bring a festive touch to any gathering. This luscious dessert combines the rich, warmly spiced flavor of pumpkin with a light, fluffy texture that melts in your mouth. Whether you’re looking to impress guests or treat yourself after a long day, this pie strikes the perfect balance between indulgence and comforting familiarity. The graham cracker crust adds a buttery, slightly crunchy foundation, while the pumpkin mousse filling echoes all those cozy fall flavors you love. It’s a fantastic twist on traditional pumpkin pie that’s simple to make yet incredibly satisfying.

Ingredients You’ll Need

The image shows six small white bowls and a clear glass bowl on a white marbled surface, each filled with different ingredients. The clear glass bowl at the top left holds bright orange pumpkin puree with a smooth, thick texture. Directly to the right, a white bowl contains white cream with a soft and smooth surface. Below, a light beige bowl is filled with light brown sugar that has a loose, crumbly texture. Next to it on the right is a small white bowl with dark brown cinnamon powder, fine and smooth in texture. Below the sugar bowl is a tiny white bowl holding amber-colored vanilla extract that looks clear and shiny. At the bottom right, a large white bowl contains smooth, thick white cream cheese with a swirled top. Small decorative pumpkins in orange and pale peach are placed around the bowls on the white marbled surface, adding a fall theme. photo taken with an iphone --ar 4:5 --v 7

Gathering your ingredients for this Pumpkin Mousse Pie Recipe is delightfully straightforward. Each component plays a distinct role in crafting that perfect pie—from the crumbly crust to the cloud-like mousse filling. Using simple pantry staples ensures that you get both incredible flavor and an easy preparation process without any fuss.

2 cups graham cracker crumbs: Provides a sweet, crunchy base for the pie crust that pairs perfectly with pumpkin.

3 tablespoons brown sugar: Adds a mellow, caramelized sweetness that enhances both the crust and mousse.
½ teaspoon salt: Balances the sweetness and deepens the overall flavor of the crust.
½ cup unsalted butter (melted): Binds the graham cracker crumbs together and gives the crust a rich, buttery taste.

15 ounces pumpkin puree: The star ingredient, delivering that iconic pumpkin flavor and silky texture.
7 ounces marshmallow crème: Adds sweetness and a fluffy, luscious texture to the mousse filling.
¼ cup brown sugar: Sweetens the mousse with a hint of molasses complexity.

2 ½ teaspoons pumpkin pie spice: Infuses warm, fragrant spices like cinnamon, cloves, and nutmeg for that classic pumpkin pie aroma.
1 teaspoon vanilla extract: Enhances all the flavors with a subtle, aromatic touch.
8 ounces frozen whipped topping (thawed): Lightens the mousse, giving it a creamy, airy consistency that’s pure indulgence.

How to Make Pumpkin Mousse Pie Recipe

The image shows a white mixing bowl with swirls of thick, creamy mixture inside. The mixture has two main colors: a rich brown and a smooth white, blending together in a marbled pattern. A wooden spoon held by a woman's hand is stirring the mixture, which looks soft and smooth. The bowl sits on a white marbled surface, and in the background, there are small decorative pumpkins in cream, light orange, and yellow with orange stripes, adding a cozy autumn feel. photo taken with an iphone --ar 4:5 --v 7

Step 1: Prepare the Graham Cracker Crust

Start by preheating your oven to 350°F (175°C), which helps bring out the buttery aroma of the crust. In a medium bowl, mix your graham cracker crumbs, brown sugar, salt, and melted butter until everything is evenly combined. Press this mixture firmly into the bottom and up the sides of a 9-inch deep-dish pie plate. This step is essential because it creates a sturdy yet tender base for your mousse. Bake it for 10 minutes until slightly golden, then set it aside on a wire rack to cool completely. If you’re pressed for time, feel free to use a store-bought crust and skip the baking.

Step 2: Make the Pumpkin Mousse Filling

In a large mixing bowl, whisk together the pumpkin puree, marshmallow crème, brown sugar, pumpkin pie spice, and vanilla extract until the mixture is perfectly smooth. This blend packs in all those signature fall flavors while keeping things sweet and fluffy. Next, gently fold in the thawed whipped topping. The key here is to fold slowly and carefully to maintain the airy quality—the mousse should feel light as a feather but still hold its shape beautifully.

Step 3: Assemble and Freeze the Pie

Once your crust is cool and the mousse is ready, spoon the filling into the crust and spread it evenly with a spatula to create a smooth surface. Cover the pie loosely with foil, being careful not to let the foil touch the mousse—that keeps the texture intact. Place the pie in the freezer and let it set for at least 4 hours or overnight. This freezing step is crucial as it solidifies the mousse, giving you that delightfully creamy and chilled pie you’re craving.

Step 4: Thaw and Garnish Before Serving

When you’re ready to serve, pull the pie out of the freezer and let it thaw at room temperature for 30 to 60 minutes. This short thawing period softens the mousse just enough to slice easily while preserving its dreamy texture. Finish by adding a generous dollop of the remaining whipped topping, and sprinkle a pinch of pumpkin pie spice or nutmeg on top for a beautiful, fragrant presentation.

How to Serve Pumpkin Mousse Pie Recipe

Garnishes

Garnishes don’t just make your Pumpkin Mousse Pie Recipe look amazing—they add a burst of flavor and texture contrast that elevates every bite. Consider topping your pie with toasted pecans or a drizzle of caramel sauce for a sweet, nutty crunch. Freshly grated nutmeg or a cinnamon stick on the side adds a rustic charm that your guests will adore. A simple swirl of whipped cream always works wonders to highlight the pie’s luscious layers.

Side Dishes

This pie pairs wonderfully with a light and refreshing side, like a crisp apple salad or a simple citrus fruit medley, which balances out the richness of the mousse. For a cozy autumn dinner, serve it after a hearty meal of roasted vegetables and turkey or a savory pumpkin soup. The creamy texture of the pie is an excellent way to round out any menu with a sweet, seasonal flourish.

Creative Ways to Present

If you want to get playful with your Pumpkin Mousse Pie Recipe presentation, try serving individual portions in mini glass jars or ramekins topped with a cinnamon stick. Adding a sprinkle of crushed graham crackers on top will echo the crust flavor beautifully. Or create a layered parfait with alternating mousse and crushed cookie layers for a stunning, no-fuss dessert that looks as good as it tastes.

Make Ahead and Storage

Storing Leftovers

Your Pumpkin Mousse Pie Recipe is best stored in the refrigerator once thawed. Cover it tightly with plastic wrap or foil to prevent any odors from affecting its delicate flavor. It will keep delicious for up to 3 days, allowing you to enjoy every last bite with fresh whipped cream as a lovely finishing touch.

Freezing

If you want to make this pie well ahead of time, it freezes beautifully while wrapped securely in foil or placed inside an airtight container. Keep it in the freezer for up to a month. When you’re ready to enjoy it, simply move the pie to the refrigerator to thaw slowly overnight, preserving the mousse’s airy texture and perfect consistency.

Reheating

Reheating is not recommended for this pie, since the creamy mousse loses its structure and delightful texture when warmed. Instead, allow it to thaw naturally at room temperature or in the fridge to maintain that silky, dreamy mouthfeel that makes this Pumpkin Mousse Pie Recipe so special.

FAQs

Can I use canned pumpkin pie filling instead of pumpkin puree?

Canned pumpkin pie filling is already sweetened and spiced, so it’s best to stick with plain pumpkin puree for this recipe to control the flavors precisely and achieve the right texture.

Is it possible to make this pie without marshmallow crème?

Marshmallow crème adds a unique sweetness and fluffiness, but if you can’t find it, a beaten egg white or extra whipped topping can be substituted for a similar light texture, though the flavor will be slightly different.

Can I use a regular pie crust instead of a graham cracker crust?

Absolutely! A traditional pie crust works well, but the graham cracker crust adds a lovely hint of sweetness and texture that pairs perfectly with the mousse filling.

How long does the pie need to freeze before serving?

For the ideal texture, freeze the pie for at least 4 hours, though overnight is preferable to ensure it sets firmly and slices cleanly.

What’s the best way to slice the pie cleanly?

Letting the pie thaw at room temperature for about 30 to 60 minutes before slicing helps soften it enough to cut neat slices without squishing the mousse.

Final Thoughts

If you’ve been searching for a show-stopping dessert that’s easy to make but delivers big on flavor and texture, this Pumpkin Mousse Pie Recipe is your new best friend. It combines familiar fall flavors with a light, cloudlike texture that’s sure to impress. Give it a try and watch how quickly this pie disappears at your table — it’s pure autumnal magic in every bite.

Pumpkin Mousse Pie Recipe

Ingredients You’ll Need