In the past few years we've been doing amazing stuff with desserts. Pastry chefs have been using herbs and spices in their desserts. So vanilla cake doesn't have to be just vanilla it can have a little thyme. Or you could have a custard with a little lavender in it which is just amazing.
I mean the first 'Back to the Future' is kind of a perfect script I think in terms of handling time travel the best. It depends on your definition. To me that means it effectively uses it in the story.