Start by creaming together softened butter, granulated sugar, and brown sugar in a mixing bowl using an electric mixer on medium speed for about 1-2 minutes until smooth and fluffy.

Next, add in one large egg, a splash of vanilla extract, and your blue gel coloring to the creamed mixture. Continue mixing on low speed until everything is evenly combined.

In a separate bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt. Gradually add this dry mix to the wet ingredients, folding gently with a spatula until just combined.

Fold in the chocolate chips and chopped Oreo cookies, ensuring they are evenly distributed throughout the dough.

Scoop out a generous ball of dough (about 2 tablespoons) and flatten it slightly in your palm. Place an Oreo in the center and wrap the dough around it to create a ball.

Cover the baking sheet with plastic wrap or parchment paper and refrigerate the cookie dough for 30 minutes.

Preheat your oven to 180°C (350°F) while the dough chills. Once ready, space your chilled dough balls on another lined baking sheet, baking them for 12-15 minutes.

Allow the Cookie Monster Cookies to rest on the baking sheet for about 5 minutes before transferring to a wire rack.