Chocolate Marshmallow Tart with Cookie Crust

Imagine a dessert that combines the nostalgic comfort of a campfire s’more with the sophisticated elegance of a French pâtisserie. This Chocolate Marshmallow Tart with Cookie Crust is exactly that. It features a buttery, crunchy chocolate cookie base, a silky-smooth dark chocolate ganache filling, and a pillowy mountain of toasted marshmallows on top. Whether you are hosting a dinner party or just craving something indulgent, this tart delivers a perfect balance of textures and flavors that will have everyone reaching for seconds.

Recipe Information

• Prep Time: 20 minutes
• Cook Time: 15 minutes
• Total Time: 35 minutes
• Servings: 10 servings
• Difficulty: Medium

Nutrition values

• Calories: 415 kcal
• Protein: 4g
• Carbs: 52g

Why Make This Chocolate Marshmallow Tart with Cookie Crust

This tart is a showstopper that requires surprisingly little effort. The cookie crust provides a deep, cocoa-rich crunch that stands up beautifully to the decadent ganache. Unlike traditional pies, this tart doesn’t require a fussy pastry dough; the press-in crust is foolproof. Plus, the toasted marshmallow topping adds a smoky sweetness that cuts through the richness of the chocolate, making every bite a multi-sensory experience. It is the ultimate “low effort, high reward” dessert.

Ingredients

• 2 cups Chocolate sandwich cookie crumbs (about 24 cookies)
• 6 tablespoons Unsalted butter, melted
• 1 pinch Salt
• 9 ounces Semi-sweet chocolate chips or chopped chocolate
• 1 cup Heavy cream
• 1 teaspoon Vanilla extract
• 3 cups Large or mini marshmallows

Directions

Step 1: Prepare the Cookie Crust

Preheat your oven to 350°F (175°C). In a medium bowl, combine the finely crushed chocolate cookie crumbs, melted butter, and a pinch of salt. Stir until the mixture resembles wet sand. Press the mixture firmly into the bottom and up the sides of a 9-inch tart pan with a removable bottom. Use the bottom of a flat measuring cup to ensure the crust is even and tightly packed. Bake for 10 minutes to set the crust, then remove from the oven and let it cool completely on a wire rack.

Step 2: Make the Chocolate Ganache Filling

Place the chocolate chips in a heat-proof glass bowl. In a small saucepan, heat the heavy cream over medium heat until it just begins to simmer—do not let it come to a rolling boil. Pour the hot cream directly over the chocolate and let it sit undisturbed for 5 minutes. Add the vanilla extract, then gently whisk the mixture starting from the center and moving outward until it is glossy and smooth. Pour the ganache into the cooled cookie crust. Smooth the top with a spatula and refrigerate for at least 2 hours, or until the filling is firm.

Step 3: Add the Toasted Marshmallow Topping

Once the chocolate is set, arrange the marshmallows in a dense layer over the top of the ganache. To toast them, you can use a kitchen blowtorch for the best control. If you don’t have a torch, place the tart under the oven broiler for 1 to 2 minutes. Watch it constantly, as marshmallows can turn from golden to burnt in seconds. Once toasted, let the tart sit for 5 minutes before slicing. Serve immediately for the best texture.

Expert Tips for Perfect Chocolate Marshmallow Tart with Cookie Crust

To get clean slices, use a sharp knife dipped in hot water and wiped dry between each cut. This prevents the sticky marshmallow and dense chocolate from clinging to the blade. Also, ensure your cream is hot enough to melt the chocolate completely; if the ganache looks grainy, you can place the bowl over a pot of simmering water (double boiler) and whisk gently until smooth. For the crust, don’t skimp on the butter, as it acts as the glue that prevents the tart from crumbling when you remove it from the pan.

Delicious Variations

You can easily customize this tart to suit your taste. For a “S’mores Tart” vibe, swap the chocolate cookies for graham cracker crumbs. If you love a salty-sweet combo, drizzle salted caramel over the ganache before adding the marshmallows. For a festive twist, add half a teaspoon of peppermint extract to the ganache during the winter holidays. You can also mix in crushed peanuts or pecans into the crust for extra crunch and a nutty flavor profile.

Frequently Asked Questions

Can I make this tart in advance?

Yes, you can prepare the crust and the chocolate ganache filling up to two days in advance. Keep the tart covered in the refrigerator. However, wait to add and toast the marshmallows until shortly before serving, as they can become tough or weep if refrigerated for too long.

What type of chocolate is best for the ganache?

Semi-sweet chocolate (around 60% cacao) provides the best balance of sweetness and richness. You can use bittersweet chocolate if you prefer a less sweet dessert, but avoid milk chocolate as the tart may become overly sugary when combined with the marshmallows.

Can I use marshmallow fluff instead of whole marshmallows?

You can use marshmallow fluff, but it will not hold its shape as well as whole marshmallows. It will create a more “oozy” topping. If using fluff, do not broil it in the oven; use a kitchen torch briefly, as fluff melts much faster than solid marshmallows.

How do I store leftovers?

Store any leftover tart in an airtight container at room temperature for up to 24 hours or in the refrigerator for up to 3 days. Note that the marshmallows will lose their toasted crunch and may become sticky in the fridge.

Can I use a regular pie dish if I don’t have a tart pan?

Absolutely. You can use a standard 9-inch pie dish. The main difference is that you won’t be able to remove the sides like you can with a tart pan, so you will serve slices directly from the dish.

Conclusion

The Chocolate Marshmallow Tart with Cookie Crust is a decadent masterpiece that appeals to children and adults alike. Its sophisticated appearance belies how simple it is to assemble, making it a fantastic addition to your dessert repertoire. By following the tips for a firm crust and a smooth ganache, you will create a dessert that looks like it came from a high-end bakery. Slice into that gooey, toasted topping and rich chocolate center—you’ve earned it!

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