Jack in the Box Oreo Shake
3 cups vanilla ice cream
1½ cups milk
8 Oreo cookies
Combine the ice cream and milk in a blender. Mix on low speed until smooth.
Break Oreo cookies and add them to the blender.
Mix on low speed for 5–10 seconds, until cookies are mostly puréed into the shake but a few larger pieces remain.
Stir with a spoon to help combine the cookies.
Pour the shakes into 2 (12-ounce) glasses.