This is the best Oreo buttercream frosting recipe! It requires just 5 ingredients and contains almost a whole cup of Oreo crumbs. The buttercream turns out smooth, creamy, and would be delicious on this easy one layer chocolate cake or on these vanilla moist cupcakes.
In a food processor or blender, pulverize the cookies into fine crumbs. Set aside.
In an electric stand mixer using the paddle attachment, beat the butter on high speed until creamy (1-2 minutes). Add the powdered sugar, heavy whipping cream, and vanilla extract and mix on low speed until combined (about 30 seconds).
Then beat on high speed for an additional 1-2 minutes until smooth and creamy. Add the Oreo crumbs and then mix on medium-high speed until fully incorporated.
Use it to frost your favorite cakes, cupcakes, or even brownies!
Notes
Room Temperature: The butter needs to be at room temperature in order to create the perfect consistency of buttercream frosting. If you start with cold butter, you'll have a difficult time getting the frosting to come together.
Oreos: Be sure to use fine crumbs in the buttercream frosting that way you can easily frost the cupcakes. I also recommend using regular Oreos, not double stuffed.
Baked Desserts: Make sure any dessert you use this frosting on is completely cooled before frosting. If not, the frosting will melt right off.