In a large pan, add half a teaspoon of butter and 2 teaspoons of apple juice. Allow the butter to melt.
Add a crepe to the pan and cook for approximately 1 minute until the crepe starts to caramelize. Fold into quarters and place on a plate while you continue with the remaining crepes.
Melt the remaining butter in the pan then add the apples. Add sugar, salt, lemon juice and remaining apple juice and cook until the sauce is reduced and the apples are tender.
Place the crepes back into the pan and spoon over the sauce.