Yes you can! Simply cut your baby potatoes into the size determined in your recipe, and place in a bowl of cold water. Ensure all of the potato chunks are covered by the water. Cover the bowl with plastic wrap or a lid and place in the fridge until you're ready to prepare your potatoes. If you will be roasting your potatoes, it's recommended to pat dry your potatoes after draining them from the bowl of water. This will make for less steam in the oven, and a crispier end result.