We sprinkle reindeer food on Christmas Eve. Like out in the yard on the grass. It was a big big deal when I was little, and we still do it for my brother. It’s oats with glitter in it, and I used to think I was feeding them. It’s cute, and I was always so excited.
Background: My informant is from Kansas City, Kansas. She has a loving relationship with her family, and she was raised Catholic. Her family is traditional.
Context: She is a good friend of mine I made at USC. We FaceTimed (quarantine prevents live conversations), and I asked her if she had any sort of folklore after explaining the concept, and she told me this.
I think this is a super common idea of leaving out food for Christmas. My own family used to stick carrots and chocolate chip cookies out for Santa, and my mom would take a bite out of each so that it looked half-eaten in the morning. https://fountainavenuekitchen.com/magical-reindeer-food/ is a recipe for this reindeer food, and this variation includes a note. I have heard of leaving a note, but I never did and neither did my friend.