Prepare 2 cookie sheets with parchment paper or cooking spray. Set aside.
In a large mixing bowl, stir the flour into the 2 dry cake mixes.
Add the eggs and oil and mix with a fork or a hand mixer.
Mix until dough comes together and there are no dry spots.
Using a cookie scoop, place a scoop of dough in your hand and shape into a ball. If you want mini cookies, break each scoop in half before rolling into balls.
Place each ball on the prepared cookie sheet, leaving an inch or two of space depending on the size of cookie ball.
Bake at 350 degrees for 10 minutes.
Place cookies on cooling rack and cool completely before frosting.
FROSTING
In a medium-size mixing bowl, combine the butter, cream cheese and vanilla. Mix until smooth.
Next, add the powdered sugar and mix until smooth and a nice consistency forms.
Spread frosting on one bottom side of a cookie and put a second cookie on top, creating an Oreo sandwich.
Store cookies in an air-tight container. *For best results, prepare a day in advance, so the cookies have time to soften.
Enjoy!
Recipe by Real Life Dinner at https://reallifedinner.com/homemade-cake-mix-oreo-cookies/