Preheat the oven to 350°F/175°C and line a cookie baking tray with parchment paper or a silicone baking mat and set aside.
In a large bowl, add butter, white sugar, and brown sugar. Cream until well combined. I used a regular spatula, but you can also use an electric mixer.
1/2 cup butter, 1/3 cup dark brown sugar, 1/4 cup white sugar
Add in egg and vanilla and continue mixing.
1 egg, 1 tbsp vanilla
Toss in flour, baking soda, cornstarch, and salt. Fold until a soft dough forms. Do not overmix!
1 1/4 cup all-purpose flour, 1 tbsp cornstarch, 1/2 tsp baking soda, 1/4 tsp salt
Add in chocolate chips, candy cane, and Oreos. Fold into the dough.
1/2 cup semi-sweet chocolate chips, 1/4 cup candy cane, 7 Oreos
Bake 6 cookies at a time for 13-14 minutes. The center will look extra gooey and soft, but will have a crisp edge. That's when you know it's done. The cookies will continue to bake on the pan after you've removed them from the oven. Now would be the time to add extra toppings on top if desired.
Enjoy!