Step 1: Prepare the Dough - Cream together softened butter, brown sugar, and granulated sugar until smooth and fluffy for about 2-3 minutes. Add in the egg, vanilla extract, and blue gel food coloring, mixing until well combined.

Step 2: Combine Dry Ingredients - In a separate bowl, whisk together flour, baking powder, baking soda, and salt. Gradually fold this dry mix into the wet ingredients until no flour streaks remain.

Step 3: Add Mix-Ins - Gently fold in chocolate chips and chopped Oreos into the dough, ensuring they are evenly distributed.

Step 4: Shape Cookies - Take a portion of dough, flatten it, and wrap it around an Oreo to form a ball.

Step 5: Chill Dough - Place cookie dough balls on a baking sheet and refrigerate for at least 30 minutes or freeze for 15-20 minutes.

Step 6: Bake - Preheat the oven to 180°C (350°F), line a baking sheet with parchment paper, and bake the cookies for 12-15 minutes until edges are golden.

Step 7: Cool - Let cooled cookies rest on the tray for 5 minutes before transferring to a wire rack.