Make the Oreo Cream Layer:
Blend milk, Oreo cookies, vanilla ice cream, ice, and vanilla extract until smooth and creamy.
Pour into the bottom 2/3 of a tall clear glass.
Make the Dragon Fruit Layer:
Rinse blender. Blend dragon fruit, coconut water, lime juice, ice, and optional food coloring until thick and slushy.
Gently pour or spoon over the Oreo layer for contrast.
Top It Off:
Add whipped cream.
Garnish with crushed Oreos, dragon fruit cubes, and glitter or sprinkles.