Use your baby's usual milk. Pour the suggested amount of milk into a clean bowl, sprinkle the cereal into the milk and mix thoroughly to prevent any lumps. Remember though that the preparation instructions are only a guideline, don't be worried about adding a little more milk or cereal to get a consistency that is just right for your little one. The amount of cereal you use depends on your baby's appetite. As your baby grows their appetite will too, so gradually increase the amount of cereal accordingly. If you use warm milk, you probably won’t need as much cereal as when you use cold milk. Always check the temperature of the cereal before you feed your baby.