Oreo crunch
Using your hands, break the Oreo cookies into small pieces and mix with the melted butter until evenly coated
Place on a cookie sheet and bake in the oven at 400 for about 6-8 minutes. They will still feel soft but harden up as they cool. Don't overcook.
Cookies
In a large bowl, whisk together flour, cream of tartar, baking soda, and salt in a separate bowl
In the stand of an electric mixer, beat sugar, and butter until creamy (3-4 minutes)
Add the eggs and mix well
Stir in the flour mixture until a dough starts to form - don't overmix
With the mixer on low, slowly add the oreo pieces to the cookie dough until just combined.
Refrigerate the cookie dough for one hour - this will help keep the cookies from going flat and also allow the flavors to set in.
Take the cookie dough roll it into 2-3 inch balls, and place on a greased baking sheet
Bake at 350 degrees for 12 minutes or until center is just set. They should still feel a bit undercooked in the center. Allow to cool for 15 minutes, and they will continue baking on the pan