If you can make smoothies in your blender, then of course you can make milkshakes, too! Pour 1 plain yogurt into the bowl of your blender, and add 2 to 3 scoops of your favorite ice cream with a bit of flavored syrup (optional). Pulse for 1 minute. Add ice cubes, and pulse again but faster this time, to get the right frothy milkshake texture. Serve immediately with a straw.