Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a large bowl, cream together butter, brown sugar, and white sugar until smooth.
Add eggs and vanilla extract and mix until fully combined.
In a separate bowl, whisk together flour, baking soda, and salt.
Gradually mix the dry ingredients into the wet ingredients until a dough forms.
Stir in blue food coloring until evenly distributed.
Fold in chocolate chips, crushed Oreos, and chopped Chips Ahoy cookies.
Use a cookie scoop or spoon to place dough balls onto the prepared baking sheet.
Bake for 10-12 minutes, or until the edges are set but centers remain soft.
Let cool for 5 minutes on the baking sheet, then transfer to a wire rack.
Optionally, add candy eyes for a fun Cookie Monster look!