The following result is obtained by our expert's opinion: The best way is to just ask for it directly or indirectly in the context you like. As it is always been very awkward to ask for it, but believe if it is a large amount then there is no issue in asking for it. Remember if she is your really a food friend then she will never get offended by this. Just show (not tell) why you are doing so and simply just ask for it. Make it so cool to split that the moment would not become awkward. Remember, don't make up the situation too much for this as will make things more awkward for both of you and your too much reaction can lead to her awkwardness.