Wash the apple and cut into fairly thick slices. Remove the seeds.

Melt the butter in a frying pan, place apples and fry on both sides until it becomes lightly browned.

Cut the croissants in the half, brush each half with the butter left in the pan after caramelising the apples.

Arrange the lettuce, apples, cheese and cranberries on the bottoms.

Cover the sandwiches with the tops of the croissants.

Thanks to @o_chochelka for the recipe.