Store the Oreo frosting in an airtight container in the fridge for up to 5 days. When you are ready to use the Oreo buttercream, bring it to room temperature and beat again for a few minutes until it is light and fluffy again.
Keyword Cookies and Cream Frosting, Oreo Buttercream Frosting, Oreo Frosting, Oreo Frosting Recipe, Oreo Icing