This fully loaded peanut butter Oreo icebox cake is a frozen delight full of dairy free peanut butter fluff, chocolate whipped cream, (dairy free) milk-soaked Oreos, and lots of peanut butter cups!!! Trust me, you’d never believe this icebox cake is vegan- it’s THE no bake dessert of the summer!

slice of vegan oreo icebox cake

The iconic no bake icebox cake – with a vegan twist!

If you’re feeling nostalgic and in no mood to bake (I feel you- the Florida sun is HOT during the summer), then you need to try this peanut butter Oreo icebox cake.

It’s currently on rotation for my determinedly no bake dessert summer (though I really do love my vegan s’mores cake). I’m seriously loving my vegan no bake strawberry crunch cheesecake, no bake Oreo cheesecake, and vegan tiramisu (as are you all on Instagram!).

slice of icebox cake on cake plate

Now let’s add this peanut butter delight: a twist on the classic icebox cake- you know the one. With fluffy layers of whipped cream, milk-soaked chocolate wafer cookies, and shaved chocolate all set in a loaf pan. This time, we’re layering it up with a peanut butter cream cheese whipped cream, Oreo cookies, and chocolate whipped cream- and making it all dairy free and vegan.

But trust me, you wouldn’t even know!!

When developing the recipe, I did try out the classic icebox cake in loaf pan form. However, I wasn’t quite in love with the big slices, and felt that a square slice actually really looked best.

sliced icebox cake

You got super fluffy layers of peanut butter and chocolate and Oreos all in one beautifully soft yet perfectly set bite with a square slice. However, you can still of course make your peanut butter Oreo icebox cake in a loaf pan! I just recommend halving the recipe 🙂

How to assemble an icebox cake

For the full written instructions and ingredient measurements, see the bottom of this post in the recipe card. You can also hit the “jump to recipe” button at the top of this post! Here, we’ll go over a brief overview of the steps, along with providing visuals for a better understanding of the recipe.

peanut butter whipped cream in a bowl
We’ll first start by making the peanut butter filling in one bowl and the chocolate whipped cream in another.
chocolate whipped cream in a bowl
Keep both bowls chilled until ready to assemble.
assembling the icebox cake
Next, spread half of the peanut butter filling into the prepared pan, followed by an even row of dairy free-milk soaked Oreos. You just need to dip them for a few seconds.
assembling the icebox cake
Spread a layer of the chocolate whipped cream on top, followed by another layer of Oreos. Then top with the final layer of peanut butter filling.
topping the icebox cake
Chill for 3 or more hours, then flip upside down onto a serving plate. Top with the cooled vegan ganache.
finished peanut butter oreo icebox cake
Then decorate with more crushed Oreos, vegan peanut butter cups, and peanut butter!

Can’t find vegan heavy cream?

No problem. You can also sub in 2 tubs of frozen vegan whipped topping for the heavy cream and powdered sugar for the peanut butter portion, and 1 tub for the heavy cream and powdered sugar in the chocolate portion.

bitten icebox cake

Tips for making a vegan icebox cake:

  • Use a chilled bowl for making the whipped cream: Like with regular whipped cream, vegan heavy cream works best if you chill your bowl for at least 20 minutes in the freezer beforehand.
  • Make it gluten-free: Swap in gluten-free Oreos, and you’re all set!
  • Want to keep it in the classic loaf pan shape? Divide the recipe in half, and assemble away!
  • Make it ahead of time: You can definitely make this icebox cake day of or the day before- either works! It will need to be re-chilled after 20 or 30 minutes on the table however.
  • Don’t skip the milk dunk: This ensures that your Oreos will be soft when you slice into your icebox cake- otherwise, you’ll ruin the beautiful layers, as it’s hard to slice the Oreos when they’re hard!
close up of bitten icebox cake

Want to save this recipe for later? Add it to your favorite recipe board on Pinterest!

If you make this recipe, please be sure to leave a comment and a rating ⭐️⭐️⭐️⭐️⭐️ below. This helps others to find the recipes! As always, I absolutely love to see your beautiful creations on Instagram and Pinterest, so be sure to tag me there as well!

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slice of vegan oreo icebox cake

Peanut Butter Oreo Icebox Cake – Dairy free and vegan!

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 3 reviews
  • Author: Britt Berlin
  • Prep Time: 30
  • Chilling time: 240
  • Total Time: 4 hours 30 minutes
  • Yield: 16 1x
  • Category: No bake
  • Method: No bake
  • Cuisine: American
  • Diet: Vegan
Print Recipe

Description

This fully loaded peanut butter Oreo icebox cake is a frozen delight full of dairy free peanut butter fluff, chocolate whipped cream, (dairy free) milk-soaked Oreos, and lots of peanut butter cups!!! Trust me, you’d never believe this icebox cake is vegan- it’s THE no bake dessert of the summer!

Ingredients

Scale
Peanut Butter Filling:
Chocolate Filling:
  • 1 1 1/2 cups (360 mL) vegan heavy cream, cold
  • 1/4 cup (25 g) cocoa powder
  • 3/4 cup (105 g) powdered sugar

Oreo Layers:

  • 24 oreos, regular, homemade, or gluten free
  • 1/4 cup dairy free milk, like oat milk, almond milk, or soy milk
To decorate:

Instructions

  1. Prep: Place two medium to large bowls in the freezer to chill for 20 minutes. Line a 9” square pan with plastic wrap or parchment paper, and set in the freezer as well.
  2. Make the peanut butter filling: In a chilled bowl, use a hand mixer to beat the vegan heavy cream from the peanut butter filling section into stiff peaks. Add in the powdered sugar and vanilla extract, and mix until incorporated. Then add in the peanut butter and vegan cream cheese, and mix again until creamy. Set aside. 
  3. Make the chocolate ice cream: In the remaining chilled bowl, use a hand mixer to beat the vegan heavy cream from the chocolate filling section into stiff peaks. Add in the cocoa powder and powdered sugar, and mix until incorporated. Be careful, as cocoa powder can spray up before fully incorporated, so start slow then increase speed. 
  4. Assemble the icebox cake: Remove the pan from the freezer. Spoon half of the peanut butter batter into the loaf pan, and spread to be smooth. Dip an Oreo into the dairy free milk, and place on top of the peanut butter layer. Repeat until the peanut butter layer is fully covered (about 12 Oreos- you may need to slice them in half to fit, like I did. See post photos). Then spoon all of the chocolate batter on top, and spread smooth. Place another layer of dairy free milk soaked Oreos on top. Finally, spoon the remaining peanut butter ice cream layer on top, and smooth to finish. You can add an extra layer of Oreos here if desired. 
  5. Freeze:  Place the peanut butter Oreo icebox cake into the freezer to chill for 3+ hours, or overnight.
  6. When ready to serve: Make a batch of vegan chocolate ganache. Wait for the ganache to cool 20 minutes so it doesn’t melt the icebox cake, and rather sets perfectly on the chilled cake top.
  7. Flip and decorate: Remove the icebox cake from the freezer. Place a piece of parchment paper down on top of the cake, along with your serving plate. Carefully flip the cake over so that the plate is now on the bottom and the cake is flipped upside down, with the pan on top. Carefully remove the pan, and peal away the parchment paper. Pour the chocolate ganache on top, and decorate with chopped vegan peanut butter cups, crushed Oreos, and a drizzle of peanut butter.
  8. Slice and serve! Slice immediately and enjoy. Store the cake in the freezer after about 20-30 minutes. Enjoy!

Notes

Gluten free: Use gluten-free Oreos or make them yourself (see ingredients list for link!).

Need an even easier icebox cake? Use 2 containers of frozen vegan whipped cream for the peanut butter layer, and 1 container for the chocolate layer in lieu of the vegan heavy cream and powdered sugar. Use a hand mixer to incarnate in the peanut butter and cream cheese into the peanut butter layer and the cocoa powder into the chocolate layer.