My earliest memory

Day 2 of the 30 day writing challenge; my earliest memory.

Well, this should be brief since my earliest memories are sketchy at best.  I have quite a few memories of when I was young, most of which are supported with photographic evidence which science says increases your memory retention so I'll skip those.  I actually have 2 very distinct memories from being very young, but I'm not sure which one is the earliest.

The first is of flying in an airplane with my uncle.  I think I must have been about 2.  My aunt and uncle had moved  to Indiana and bought my grandmother a plane ticket to fly back with my uncle to see her newest grandaughter, who is about 18 months younger than me.  When it came time to go, Grandma decided not to fly for some reason (fear, going without Granddad, who knows?) so I went. My grandparents drove out later to visit and retrieve me and there are pictures of that.  My sole memory of this experience is sitting on the plane with the tray table down.  In front of me were the real dishes and silverware they used on planes in the 1960's.  I had a cup of hot chocolate in a coffee cup, which must have been a real treat for me.  I think this memory has more to do with the hot chocolate than the plane ride because it is the only think I remember from this trip!

The second memory involves going to Ohio to visit my great-grandmother.  In my head, I have vague images of the farmhouse porch and kitchen.  There is also a sense of awe that I had such a person as a great-grandma and that there were people so old, although in reality, she was probably only in her early 70's at the time, possibly even her late 60's.  What I remember most, however, was sitting at the kitchen table and having warm milk, from a cow.

Why do my earliest memories revolve around food?  I'm sure there's something psychological there, but I don't think I want to know!