A croquette has a crisp crust and a soft centre, so dream books read it as a tough exterior that protects a tender core, often made from what was left over.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.