Cookie Dough Milkshakes - Cool, quick and easy frozen treat recipe at it's finest. Homemade cookie dough milkshakes topped with a super simple homemade vanilla whipped cream and chocolate chips. This is the perfect summer time sweet treat for those hot days in the sun. Kids of all ages (and adults too) will enjoy this as a snack or dessert. Why go out for shakes when you can DIY at home? These are super yummy and fun to make.