Given the background description of some cooking related query, summarize the question into a title

Input: Consider Input: I've noticed that meatballs are one type of food that often tastes much better the next day. So whenever I make meatballs, I make lots of extras and put them in my fridge to allow the flavors to "develop".However, when I warm the meatballs up in the microwave they sometimes get dry or have slightly tough and rubbery spots -- especially on outside edges.What is the best technique to re-warm / re-serve meatballs that you have made the previous day (or a couple days prior) so they stay moist and delicious?

Output: What is the best way to re-serve day old meat balls?


Input: Consider Input: I'm trying to learn to fillet and skin fish, and getting conflicting advice.Most sources say that the boning/filleting knife should be quite sharp. But when an instructor showed me how to skin a trout fillet, the knife wasn't particularly sharp, and the technique seemed akin to scraping the flesh off the skin in one pass. I've even seen some information on-line by a surgeon who got good results with the "blunt dissection" approach, skinning a fillet with the handle of a table spoon. I haven't bought a boning/filleting knife yet, but in experiments my chef's knife (I know, too thick and stiff) tends to cut right through the skin.I'm coming to the conclusion that a knife for this purpose should be only moderately sharp. (Part of the problem may be standards-- I hone my own knives, and I don't call a knife sharp unless I can shave the hairs off my wrist with it.) Am I on the right track?

Output: How sharp should a filleting knife be?


Input: Consider Input: Green onions are said to be milder than onions, which would suggest that if one do not mind the more powerful onion flavour in a particular dish then onions could be used in place of green onions.My assumption could be wrong here; I am not a chef but a poor father trying to cook. I want to substitute green onion for Escallion in some Caribbean recipes, and several internet sites say that Escallion is green onion - but, confusingly, some Caribbean cooking websites are saying that Escallion is not green onion.Could someone clear this up for me? Is Escallion the same as scallions (green onions)? And can Escallion be replaced by onion in a recipe?


Output: Can Escallion be replaced by onion?