Dairy free butterscotch?

Hi!!! I personally am not dairy free, but I have a close friend who can't consume eggs or dairy. I'm committed to being able to make very close alternatives of basically anything they're unable to have, and the topic of butterscotch came up today. I love butterscotch and I'd never even considered that it'd be something they can't have (yes I know butter is in the name, but so is scotch. I thought maybe it was just one of those names that makes no sense.) Anyways now I need to be able to make buttescotch dairy-free because it's amazing, but there aren't any recipes for it online aside from just the syrup! Any advice?