1. Launch Cook, Serve, Delicious! 2!!.
2. Load the save file that contains the key binds you want to export.
3. Enter Options > Keyboard > Import/Export Key Binds...
4. Press ⇧ Shift+N to create the key bind file. The game can be turned off now.
5. Launch Cook, Serve, Delicious! 3?!.
6. Select Options > Keyboard > Import / Export Key Binds... > Import Binds
7. Locate and select the exported key bind file.