Preheat oven to 400f
Simmer potatoes in heavily salted water until tender enough to pierce with a pairing knife (as seen)
In a sauteuse over medium heat cook the bacon until it is rendered and browned all over. Remove with a slotted spoon onto paper
Discard half of the fat
Add the white onion, reduce heat to medium/low and cook while stirring every so often until 75% caramelized
Add bacon, and thyme. Increase heat to medium and cook 2-3 minutes until fragrant
Add wine, cook until reduced by half
Add cream, stir, add salt and pepper. Cook until reduced by 25%
Stir in crème fraiche, once incorporated potatoes and stir well
Layer an oven safe dish with potato mix, then bacon twice, and top with slices of cheese
Bake until bubbling and caramelized on top.
Enjoy.
