Details About This Cookies & Cream Sheet Cake
Flavor: All Oreo! If you love vanilla cake, whipped frosting, and Oreo cookies, you will ADORE this cookies & cream sheet cake. I was going to add chocolate ganache or chocolate buttercream, but decided to keep everything vanilla so nothing overpowers the actual Oreos in the cake batter and frosting. Texture: The cookies and cream cake is buttery, soft, and moist and the frosting has a creamy whipped texture that’s slightly heavier than regular whipped cream, but much lighter than vanilla buttercream. The Oreo cookie crumbs in the cake aren’t crunchy at all—instead, they take on a soft and cakey texture. The cake batter doesn’t require anything complicated, but make sure that you use egg whites (no yolks) and cake flour instead of all-purpose flour. Both of these ingredients help guarantee a softer, lighter cake crumb. Since we’re not using egg yolks, which often weigh down a cake, let’s add fat back into the batter with sour cream. Sour cream keeps the cake light, but adds unbeatable moisture. Ease: Sheet cakes are renowned for being easier than layer cakes—no leveling off cake layers, no fancy decor, no crazy assembly required. Slicing and serving is a breeze and you’ll appreciate that this dessert can feed a crowd, but is still completely manageable to make. The whipped cream frosting comes together quickly and most of the work is done by your mixer. Honestly the hardest part about this entire recipe is resisting the urge to eat all those chopped Oreo cookies. (Ok, go ahead and sneak some!)
If you love Oreos, try this super easy cookies & cream pie, homemade Oreos, cookies & cream puppy chow, or 4 ingredient Oreo balls next.
Cookies & Cream Cake: What Works & What Doesn’t
This vanilla cake batter and this reverse-creamed vanilla sheet cake batter proved to be too heavy and thick for the Oreo cookie pieces—both cakes tasted pretty dense. My versatile white cake is my chameleon cake, proving successful when flavored, altered, or doctored up. It’s the starting point for burnt sugar cake, espresso cake, coconut cake, fresh berry cream cake, pineapple coconut cake, pistachio cake, and strawberry cake. It is, without a doubt, my favorite base cake recipe. For this cookies and cream cake, I reduced the sugar since we’re adding Oreo cookies. The sweetness was perfect, but the cake tasted greasy and wet as a result of the slightly melted cream filling in the cookies. I removed 1 egg white and reduced the milk, then added a little sour cream since I removed milk. Removing some liquid made the batter thicker, which held onto and soaked in the cookie pieces a bit better.
How to Make Oreo Whipped Cream Frosting
This frosting recipe yields 4–5 cups and there’s only 3/4 cup of confectioners’ sugar in all of it. (Plus the Oreo cookie pieces!) When it comes to cake or cupcake decor, I usually stick with buttercream or cream cheese frosting—and both are quite sweet. I wanted something different today, so I turned to my creamy, fluffy, thick whipped frosting. It’s made with cream cheese, but you can’t taste the cream cheese. And when you fold in the chopped Oreo cookie pieces, the frosting itself tastes like the cookie’s cream filling! It would be delicious paired with chocolate cake or atop chocolate cupcakes and vanilla cupcakes. Making whipped cream frosting is very easy. Let me review it with you: It holds a sturdy peak!
Add Oreo Cookies
If you want to use this whipped cream frosting for other flavor cakes, the process stops there. But for a cookies and cream cake, let’s fold in chopped Oreo cookies. I wanted piping around the edges of the cake, so I left some frosting plain since the Oreo cookies get stuck in a piping tip. I find a small offset spatula is best for frosting 9×13-inch sheet cakes. And as you can see, the plain frosting pipes beautifully! I used a Wilton 1M piping tip to pipe a zigzag border design.
Can I Make This as a Layer Cake?
If possible, I always choose making a sheet cake instead of a layer cake because sheet cakes are quicker and easier to decorate and slice. Plus there’s no assembly required and you can serve it right out of the baking pan. (Three of my favorite quarter sheet cakes are this vanilla sheet cake, this banana cake, and this yellow sheet cake, and we always enjoy this chocolate sheet cake that’s made in a half sheet pan.) That being said, you can absolutely turn this into a cookies & cream layer cake if needed. Divide the batter between 2 9-inch round pans or 3 8-inch round pans and use parchment paper rounds to help the cakes seamlessly release from the pans. See recipe note for details. The frosting yields enough for filling and frosting a 2- or 3-layer cake.
