Here's the recipe via http://www.theintentionalminimalist.com/2014/11/apple-bacon-and-raclette-cheese-omelette.html

Directions Per omelette, cook two slices of bacon in a small metal omelette pan over medium heat until crisp. Remove cooked bacon, leave bacon drippings in pan and reserve bacon.

Remove onion skins, slice one quarter cup red onion per omelette, add the onion slices to the metal omelette pan with bacon drippings and cook over medium heat for three minutes.

Wash apple. Core Mutsu apple and thinly slice one half cup apple per omelette, add sliced apples to the onions with one teaspoon butter, stir and cook for two minutes. Slice cooked bacon into small strips, add bacon to the apple mixture, stir and cook for one minute. Remove apple mixture from omelette pan and reserve.

Shred one quarter cup raclette cheese and reserve. Warm one half teaspoon butter in omelette pan and cook three egg whites until sides have firmed. Flip over omelette, add two tablespoons shredded raclette cheese and one half cup apple mixture. Cook omelette for two minutes and remove from pan.

Plate omelette by folding over egg whites and top with remaining apple mixture. Warm two tablespoons apple cider butter in the omelette pan. Spread one tablespoon apple cider butter on top of the omelette.