Do video formats support structured meta data to be embedded in them?

If I make a video of me cooking, can I embed the recipe in the video, etc. Not just visually, but i.e. at 10s, I digitally insert the data "Add 1 cup red peppers". It isn't necessary a caption of something said or shown, just extra data.

Could a video creator leave substantially more metadata in their videos? I always assumed the pop-up metadata was externally stored and timestamp synced. Is there a way to embed it?