Recently an uncle of mine taught me how to make Γαλακτομπούρεκο, which contains eggs and milk. When I asked him how many hours after it is baked should I put it the fridge, he said that it is Ok for a couple of days out of fridge.
But I'm not really sure, since it contains milk and eggs, like I said. So, how long is a dessert like this good for out of fridge without it getting bad?
Best Answer
Since it is a custard, you should probably refrigerate it as soon as it is cool.
A very sugary or acidic custard may be able to resist bacteria for a couple days (see Bismark donuts), but unless the recipe was specifically developed to be stable at room temperature, then there is some risk of it going bad.
If you have a fridge, there's no reason not to use it. It may make the dough a little soggy, so you will want to find a way to store it to reduce condensation.
Better yet, make just as much as you are going to eat/serve at one time, and don't worry about this problem.
Link 1 (search for custard on page)
Link 2 (about pies, see portion on Custard pies)