- In a large mixing bowl, whisk together vanilla pudding mix and 3 cups of milk, and keep stirring for about a minute. Fold in the whipped topping. - Take a bowl of the Oreo cookie crumbs, and divide that between 6 plastic cups.
- Divide the pudding mixture by putting a third of the mixture in one bowl, and two-thirds of the mixture in another. - To the smaller bowl, add a few drops of purple gel food coloring. - Divide the purple pudding evenly among your cups, filling them about a third full.
- Take your remaining bowl of pudding, and add a few drops of pink gel food coloring. - Divide the pink pudding mixture among your cups, leaving just a small amount of space at the top for a final Oreo layer.