Preheat the oven to 350º F. Line a cookie sheet with a silicone baking mat or parchment paper.

In a mixing bowl combine the flour, cornstarch, baking soda, and salt. Set aside.

In a larger mixing bowl combine the butter, brown sugar, and granulated sugar. Beat on medium speed for 2 minutes. You want this mixture to be fluffy and pale in color.

Add in the eggs and vanilla extract, beat for 30 seconds.

Gradually mix in the dry ingredients, mixing on low speed. Before you finish mixing the dough, add in the royal blue, electric blue, and violet gel food coloring. You will need a good bit of food coloring to achieve a deep, true blue color. Continue mixing, the dough will be thick.

Add in ⅓ cup white chocolate chips, ⅓ cup chopped chips ahoy cookies, and ⅓ cup chopped oreos, mix by hand until combined.

Use a cookie scoop to form 2 tablespoon sized cookie dough balls, roll into a smooth ball between your hands. Press the remaining white chocolate chips, chips ahoy cookies, and oreo cookies on the outside of the dough balls. Place about 8 cookies on a cookie sheet lined with a silicone baking mat at a time. I recommend only baking 1 cookie sheet at a time for even baking. Bake 2 tablespoon sized cookie dough balls for 10-12 minutes. Ideally, you want to pull the cookies out of the oven before the edges start browning.

Allow the cookies to cool for 15 minutes on the baking sheet before removing.