A basic milkshake consists of ice cream and milk, but mix-ins and toppings provide endless variations. The easiest way to make a milkshake is with a blender, but it's also possible to do it by hand.

Crushing ice for a frozen cocktail? Reach for a full-sized blender. Need a quick smoothie for your morning commute? Break out your personal-sized blender, then hit the road with its on-the-go jar. But ...