Well, it’s often in the steps; stuff like, while the sauce is simmering, prepare the vegetables… just before the sauce has reduced, add the red wine. And some is just implicit knowledge that comes with experience, true.

I also haven’t seen a site that actually turns that into a neat visualisation, but as an amateur chef, properly timing steps of a recipe is definitely important.

I’m inclined to agree with GP though that a good model should be able to capture that.

To me it looks like having the timing for each step is enough (schema.org already supports that).

You can then _decide_ what to paralellize (maybe you want to take it slow, maybe you have another person to help you, etc).

To me, it sounds way simpler. Specially for those writing or annotating the recipes. You're thinking of the reader, but the writing is important too, it's the hidden cost of making super detailed models.