For the croissants, melt the butter in a frying pan, then place the croissants into the pan to fry for 3-4 minutes on each side, or until golden-brown.
For the butterscotch apples, place the butter and sugar into a small frying pan to melt over a medium heat.
Add the chopped apple and the orange juice to the pan and cook for 5-6 minutes, then add the sultanas and cook for another minute. Finally add the cream to the pan, cover with a lid and simmer for 5-6 minutes.
To serve, place the croissants onto a plate along with the butterscotch apples and a scoop of vanilla ice cream, if desired.