LO is on aptamil pepti 1 and doc has advised to avoid all dairy until they've established ifbhe has CMPA or something else. Can i use vegan cheeses as a substitute when cooking and what milk is best to use instead of cows milk? If making porridge for breakfast, i will use some of his formula but wanting to make porridge fingers that will keep for a few days and don't know if I can still use formula for that due to the 1/2 hour rule?