Peach Marshmallow Icebox Cookie Layers

Creamy. Fluffy. Dreamy.

Indulge in the ultimate summer comfort dessert with this no-bake Peach Marshmallow Icebox Cookie Layers. This delightful treat captures the essence of a classic peach cobbler and a s’more in one easy-to-make, elegant trifle. Featuring layers of crisp, sweet sandwich cookies, clouds of ultra-fluffy marshmallow cream, tender fresh peaches, and a luscious, golden peach sauce, this dessert is a guaranteed crowd-pleaser. Best of all, it requires zero baking and just a bit of chilling time to meld into perfection.

Ingredients

For the Peach Sauce:

3 cups fresh peaches, peeled and diced (about 4 medium peaches)
1/2 cup granulated sugar
1/4 cup water
1 tablespoon lemon juice
1 tablespoon cornstarch dissolved in 2 tablespoons cold water

For the Marshmallow Fluff:

2 cups heavy cream, very cold
1 teaspoon vanilla extract
1 jar (approx. 7-7.5 oz) marshmallow creme/fluff

For the Cookie Layers:

Two packages (approx. 12 oz each) vanilla-flavored creme-filled sandwich cookies (like Nilla Wafers sandwich cookies or a generic equivalent)

For Garnish:

1 additional cup fresh peach slices, for topping
A handful of whole creme-filled sandwich cookies, for topping

Instructions

Step 1: Prepare the Peach Sauce

In a medium saucepan, combine the diced peaches, granulated sugar, water, and lemon juice. Bring the mixture to a simmer over medium heat, stirring occasionally.
Allow the peaches to cook down for about 8-10 minutes, until they are tender and releasing their juices.
Whisk the cornstarch slurry (cornstarch dissolved in cold water) into the simmering peaches.
Continue to simmer, stirring constantly, for 1-2 minutes until the sauce thickens significantly and turns glossy. Remove from heat.
Transfer the peach sauce to a bowl and let it cool to room temperature, then refrigerate until fully chilled (about 1 hour).

Step 2: Prepare the Marshmallow Fluff

In a large, chilled bowl, beat the cold heavy cream and vanilla extract using an electric mixer (whisk attachment works best) on medium-high speed until soft peaks form.
Add the entire jar of marshmallow creme to the whipped cream.
Continue to beat on medium speed just until the mixture is fully combined and stiff peaks form. Be careful not to over-mix, or the cream will become grainy. Keep chilled until ready to assemble.

Step 3: Assemble the Icebox Trifle

In a large, clear glass trifle bowl (or a deep 9×13 inch dish), spread a very thin layer of the chilled marshmallow fluff on the bottom to anchor the cookies.
Create a base layer by arranging the vanilla creme sandwich cookies side-by-side, covering the bottom of the bowl. Break cookies as needed to fill gaps.
Spoon about one-third of the chilled marshmallow fluff over the cookie layer and spread it gently to the edges.
Evenly distribute about half of the chilled peach sauce over the fluff layer, allowing it to drizzle down the sides slightly.
Repeat the layers: Add another layer of cookies, followed by half of the remaining fluff, and then the remaining peach sauce.
Finish with a final layer of cookies, topped with the remaining marshmallow fluff.

Step 4: Chill and Serve

Cover the trifle bowl tightly with plastic wrap.
Refrigerate for at least 6 hours, but preferably overnight. This crucial chilling time allows the cookies to soften from the moisture of the fluff and sauce, creating a cake-like texture.
Just before serving, decoratively arrange the reserved fresh peach slices and whole creme-filled sandwich cookies on top of the chilled trifle.
Serve cold, scooping generous portions into individual bowls.

Tips for Success

Cookie Choice: The integrity of this dessert relies on the cookies absorbing the moisture. While crispy wafers are standard for some icebox cakes, this specific recipe benefits immensely from creme-filled sandwich cookies. The creme filling prevents the cookie wafer from turning to total mush, instead giving it a delightful, softened, cake-like bite.
Cool the Sauce: Ensure your peach sauce is completely chilled before assembling. If it’s warm, it will melt the marshmallow fluff.
Fluff Consistency: When folding the marshmallow creme into the whipped cream, be gentle to maintain the light, fluffy texture. Overworking the mixture can deflate it.
Make-Ahead: This dessert is ideal for making ahead. It is best when allowed to chill for a full 24 hours.

Storage and Reserving

Storage: Cover leftovers tightly with plastic wrap and store in the refrigerator for up to 3 days. After that, the cookies may become too soft.
Reheating: This dessert is intended to be served cold. Do not attempt to reheat it.

Serving Suggestions

This trifle is a show-stopping dessert for summer barbecues, potlucks, or family gatherings. Serve it alongside a refreshing glass of iced tea or lemonade. For an extra special touch, offer a side of additional whipped cream or a sprinkle of toasted coconut flakes on each serving.

Conclusion

With its harmonious blend of textures—creamy, fluffy, and softened cookies—and the vibrant, sweet flavor of fresh peaches, this Peach Marshmallow Icebox Cookie Layers dessert is an instant classic. It’s the definition of a dreamy, no-fuss dessert that delivers maximum flavor with minimal effort. Enjoy every last spoonful of this summer delight!