The consistency of milkshakes it all dependent on how frozen your ice cream is, how much milk you use, and how quickly you enjoy it! If you let the ice cream sit out too long, don’t add milk or the texture will be too runny. If you pull the ice cream right from the freezer, then you’ll need a bit of milk to get it blended. But don’t add too much or it will be too runny! Enjoy the milkshake right away as they melt quickly.