An easy no-bake treat, this Blueberry Icebox Cake is made up of layers of graham crackers, sweet mascarpone cream, and a delicious blueberry pie filling.

Blueberry Icebox Cake decorated with blueberries and revealed layers.

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No-Bake Mascarpone Blueberry Cake

Imagine a blueberry pie meets a cake and a cheesecake and that's exactly what you'll get with this Mascarpone Blueberry Icebox Cake.

This beautiful summer dessert is a simple no-bake treat that consists of layers of a no-bake mascarpone cheesecake and blueberry pie filling layered between graham crackers that transforms into a cake-like treat after an overnight rest in the refrigerator.

It is impressive looking and entirely fool-proof to make. This is the summer recipe to have on hand when the weather is just too dang hot to fire up the oven or even the grill.

So, let's get to making it, shall we? The text below offers tons of tips and helpful notes, or you can scroll to the bottom to grab the recipe and get started!

More of a visual person? Check out the video of me making it below, located right above the recipe!

A slice of blueberry icebox cake on a blue plate.

But first, what is an icebox cake?

An icebox cake is a no-bake dessert made from a few simple ingredients. Often, icebox cakes have graham crackers or some other cookie element layered with cream and other ingredients. The dessert is assembled and rests in the freezer or the refrigerator for a period of time, which allows the graham crackers to soften as they soak up the sweet cream. It truly makes this dessert taste and feel like a cake, thanks to the texture and feel of the ingredients perfectly coming together.

Ingredients Needed

graham crackers
blueberries
mascarpone
heavy cream
butter
granulated sugar
cornstarch
cinnamon
vanilla
salt

Substitutions

Mascarpone: If you can't find or don't want to use mascarpone, you can substitute it with cream cheese.

Blueberries: Use fresh or frozen blueberries

Cinnamon: Don't want to add cinnamon? You can omit it.

Graham crackers: The beauty of icebox cakes is that you can substitute another cookie to create a different flavor here. Feel free to use another cookie like a vanilla wafer or a biscoff cookie in place of graham crackers.

Tools Needed

electric mixer
off-set spatula
9" square straight-sided cake pan (see below for more on this)
baking basics: small pot, bowls, whisk

Type of Pan Needed

Let's take a minute to talk about the type of pan used to create this dessert. An icebox cake really doesn't need to have any special type of shape, but I really love the idea of having a long and tall cake for this dessert. It makes it look spectacular and makes a simple dish look extravagant.

To achieve this, I made the cake in a square container, then cut the dessert in half and stacked the two halves on top of each other. This allowed for less time spent layering the dessert while still accomplishing the towering outcome.

I have a special no-bake square pan that has collapsible sides to make this, but just a standard square pan will work just fine. Laying parchment paper inside the tin will be helpful in getting it out.

If you don't have a square baking tin, you can make this dessert in a loaf pan!

Or, simply leave it as a flat cake. Either way, it's going to be super delicious.

Don't spend too much time thinking about what vessel you'll assemble the cake in; just use what you have.

How to Make an Ice Box Cake

Traditionally, these cakes don't involve much more than assembling the ingredients. For this Blueberry Icebox Cake, the recipe calls for making a quick blueberry pie filling, whipping the mascarpone filling, and then assembling.

And as stated above, the recipe calls for making the dessert in a square baking dish, then cutting and stacking the cake to make for a tall and long impressive cake.

Graham crackers in a tin for an icebox cake.

Spreading mascarpone filling on top of graham crackers for an icebox cake.

Here are the layers of the cake:

graham crackers
no-bake mascarpone cheesecake
blueberry pie filling
graham crackers
no-bake mascarpone cheesecake
blueberry pie filling
half graham cracker layer (because it will be sliced and stacked after chilling)
finally, slice in half and stack for a 13 layer cake

Here are some tips for making it:

Let the blueberry pie filling chill before using it. If the pie filling is hot, it will deflate the cream. It's easy to make the blueberry filling a day ahead. Or to speed up the cooling time, you can place the pie filling spread out on a sheetpan in the refrigerator to chill while assembling the rest of the ingredients.
Don't overwhip or under whip the cream! You want the cream to be just right: stiff enough that it's going to lighten the mascarpone mixture, but not so stiff that it starts to curdle. You'll still be able to taste that slightly curdled cream in the final dish, so pay attention while whipping the cream. Want more information on whipping cream? Check out this post all about Whipping Cream.
Make sure to tightly layer in the graham crackers, leaving little to no space between each cracker. The graham crackers are what makes this recipe cake-like, so don't skip out on them. Use a knife to slice them cleanly to fit into the space of your container.
Don't skip the chilling time! Chilling the cake in the refrigerator overnight transforms this dish from a crunchy graham cracker layer dessert to an icebox cake!
Similarly, don't skip out on the freezing time before assembling. Slightly freezing this cake directly before assembling makes it easier to handle when you are removing the icebox cake from the tin, and when you are going in to cut it and decorate it.

A blueberry icebox cake stacked on a platter.

Freezer Vs. Refrigerator

This recipe initially calls for chilling the icebox cake in the refrigerator, preferably overnight, and then briefly chilling the cake in the freezer before assembling and serving.

Letting the cake chill in the refrigerator transforms this dessert from a crunchy graham cracker layered dessert to a cake, as the crackers soak up the cream and soften. If you immediately transfer the icebox cake to the freezer, instead of soaking up the cream, it freezes, so when you defrost it, it will still be a bit crunchy.

This recipe calls for a quick chill in the freezer before assembling because having the cake chilled makes it sturdier to cut in half, stack, and garnish. This step is optional, as you don't even have to stack the cake if you don't want to, but this trick makes it easier to handle the dessert.

How to Decorate It

The recipe calls for reserving one cup of the whipped mascarpone filling in a separate container. This is meant to spread on the top of the cake before serving. In addition to this, I recommend garnishing the top with fresh blueberries. It adds a nice effect to the final dish.

Slices of blueberry icebox cake on blue plates.

How to Serve and Store an Ice Box Cake

Once the icebox cake has softened overnight, it is best served within 1-2 days. Simply slice, serve, and enjoy.

However, this cake freezes exceptionally well without the garnish on top. Once it has softened, you can freeze this entire cake or freeze it in slices in an airtight container for up to 1 month. To defrost, simply leave at room temperature for about 30 minutes, or let it sit overnight in the refrigerator.

Frequently Asked Questions

Do I have to use a square baking container?

No! You can truly assemble this cake in any baking tin you have. You can change the shape. You'll just modify the recipe by changing the number of layers you have.

Do I need to stack this cake to make a long and tall layer cake?

No! Just like you can use any vessel to assemble this, you do not need to stack it. I choose to stack it because it looks good. But you can slice and serve straight from the container.

Do I need to freeze it before serving?

You can skip that step if you want, but it makes it easier to handle. The most important chilling aspect is ensuring it rests in the refrigerator to allow the cookies to soften.

More No-Bake Recipes

I am so honored when you make a recipe from my site! If you make this Mascarpone Blueberry Icebox Cake, please leave a comment and a star rating with your experience! If you have any questions about this recipe, feel free to comment here, too!

Full Recipe

Blueberry Icebox Cake

Print Recipe

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5 from 4 reviews

An easy no-bake treat, this Blueberry Icebox Cake is made up of layers of graham crackers, sweet mascarpone cream, and a delicious blueberry pie filling.

Author: Kelli Avila
Prep Time: 00:20
Cook Time: 00:10
Total Time: 08:30
Yield: Serves 8-10
Method: No-Bake

Ingredients

Blueberry Filling:

3 cups (420) blueberries (fresh or frozen)
⅓ cup (70 grams) granulated sugar
1 tablespoon cornstarch
Pinch cinnamon
Pinch salt

Cake:

1–½ cup (340 grams) heavy cream, cold
8 ounces (230 grams) mascarpone
½ cup (100 grams) granulated sugar
1 teaspoon vanilla
⅛ teaspoon ground cinnamon
Pinch of salt
12–14 graham crackers (about 3 sleeves)
Fresh blueberries, for decorating

Cook Mode Prevent your screen from going dark

Instructions

Make the Pie Filling:

Add blueberries, sugar, cornstarch, cinnamon and salt to a medium pot and mix together until combined.
Turn the heat on to medium and cook, stirring frequently until the filling is bubbling throughout, about 5-8 minutes.
Remove from the heat, and transfer to a heat proof container to cool down to room temperature.

Make Cream Filling:

With an electric mixer using the whisk attachment, whip the heavy cream until medium-stiff peaks form, about 3 minutes. Remove the whipped cream from the bowl and set aside in a separate bowl.
Place the mascarpone in the now empty mixing bowl, along with the sugar, vanilla, cinnamon, and salt. Whip on medium speed until completely smooth, about 2 minutes, scraping down the bowl halfway though.
Fold in ⅓ of the whipped cream to the mascarpone mixture with a rubber spatula until it is completely combined.
Add the remaining whipped cream to the bowl and gently fold it in, being careful not to deflate it. Transfer about 1 cup of the mascarpone filling to an airtight container and place in the refrigerator until the cake is ready to be served. It will be used for decorating the top of the cake.

Assemble:

Line a 9” square baking dish (see note about other containers) with 2 pieces of parchment paper to create a sling to remove the finished cake. Make sure to leave some overhang to easily pull up and release the cake later.
Line the entire bottom of the prepared pan with graham crackers, cutting any crackers as needed so they fit snuggly in one layer.
Spread half of the mascarpone filling evenly on top of the graham crackers.
Spread half of the cooled blueberry pie filling evenly on top of the mascarpone.
Place another layer of graham crackers on top of the blueberries.
Repeat the process with one more layer of mascarpone, and blueberry pie filling.
Place the final half layer of graham crackers on top of the blueberry filling. It is only half so the cake can be cut in half and stacked later. If you don’t plan to stack the cake, you can put graham crackers to cover.
Cover the dish and let rest in the refrigerator for 8-12 hours.
Transfer the dish to the freezer to let chill for at least 1 hour before ready to assemble.
Once ready to assemble, remove from the freezer. Run a hot and dry butter knife along the edges of the cake, to help release the sides from the pan. Then carefully lift the cake out of the pan.
Place cake on a cutting board and cut in half along the edge of the graham crackers. Carefully place the half with the graham cracker on top of the layer with the blueberry filling so you have tall loaf cake.
Place the cake on a platter and spread the reserved mascarpone filling on the top layer. Decorate as desired with fresh blueberries.
Let the cake sit for 5-10 minutes to soften up, and then slice and serve. Or, place in the refrigerator until ready to serve.

Notes

Have a question or looking for tips? The text written above the recipe is always a great first place to start! This Blueberry Icebox Cake was developed with love, and I always include loads of explanations, tips, step-by-step photos and technical advice before the recipe.

You do not need to use a straight-sided square baking container to make this. You can truly assemble this cake in any baking tin you have. You can change the shape. You'll just modify the recipe by changing the number of layers you have. Either way, it's still going to be super delicious, so don't spend too much time thinking about what vessel you'll assemble the cake in, and just use what you have. See the note in the text above about different baking vessels.

Letting the cake chill in the refrigerator transforms this dessert from a crunchy graham cracker layered dessert to a cake as the crackers soak up the cream and soften. The recipe then calls for a quick chill in the freezer before serving because slightly frozen cake makes it sturdier to cut in half, stack, and garnish. This step is optional, as you don't even have to stack them if you don't want to, but this trick makes it easier to handle the dessert.

Once the icebox cake has softened overnight, it is best served within 1-2 days. Simply slice and serve! However, this cake freezes exceptionally well. Once it has softened, you can freeze this entire cake, or freeze it in slices in an airtight container for up to 1 month. To defrost, simply leave at room temperature for about 30 minutes, or let it sit overnight in the refrigerator.

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