I'm completely convinced these are the BEST Homemade Oreo Cookies ever! The Oreo cookies are made with black cocoa powder (which is found in real Oreos you buy at the store), crushed Oreo cookies, and then sandwiched with a vanilla buttercream.
Preheat oven to 375°F. Line a baking sheet with parchment paper or a baking mat. Set aside.
In the bowl of a stand mixer fitted with a paddle attachment cream butter and sugars on medium speed for 2-3 minutes. Add eggs and vanilla and mix until combined. Scrape down the sides of the bowl as needed. Add flour, cocoa, Oreo crumbs, baking soda, baking powder, and salt. Mix to combine.
Using a size 30 cookie scoop, portion the dough into balls. Place the balls 2 inches apart on a parchment lined baking sheet.
Bake for 8 minutes or until the edges are just set and the tops no longer appear shiny. Remove from oven and let cookies cool on pan for 3-5 minutes then transfer to wire rack to cool completely.
Vanilla Buttercream
Cream the butter until light and fluffy, about 2 minutes on medium speed. Add the powdered sugar a little at a time until fully combined. Add the vanilla and heavy cream, if needed.
Assembly
Pipe or spread 1-2 tablespoons worth of frosting on the underside of 1 cookie. Grab a second cookie and sandwich the two flat sides together to create your homemade Oreo sandwich cookie! Enjoy!
Notes
*if you want slightly thicker oreo cookies then portion the dough into balls and then freeze the dough balls for 10 minutes. Then bake as directed, but bake for 8-9 minutes.Make Ahead, Storing, and FreezingStore any leftover Oreo filling in the fridge in an airtight container for up to 1 week or in the freezer for up to 3 months. If freezing, store in the fridge overnight to thaw before using.Freeze the homemade Oreo cookies by wrapping each Oreo cookie sandwich individually in plastic wrap and then store the wrapped cookies in a Ziplock bag or airtight container. The cookies can be frozen for up to 3 months. Let thaw in the fridge overnight.Store the cookies at room temperature in an airtight container or Ziplock bag for 2-3 days or in the fridge for 3-5 days.*For slightly flatter cookies do not chill the dough.This recipe makes 19 cookie sandwiches.