You'll only need ½ teaspoon for the salted caramel upside-down cake, but there's plenty you can do with the leftovers. You could use it to flavor an apple pie -- of course -- apple sauce ...

Cake Recipe Revamped Apple Upside Down Cake - Glen And Friends Cooking Today Glen Cooks a pretty sturdy cake recipe from 1889 - and we drag it into the future with some caramel, spices, and apples.

It's soaked with a rum syrup after baking and topped with a rich caramel sauce for serving. This upside-down apple cake from Eddie Perfect channels the essence of the French classic tarte tatin ...