If you've ever tasted German potato salad, then you are familiar with its rich and tangy almost sweet and sour profile. And then of course a generous topping of salty crumbled bacon! Loaded German Potato Bake incorporates many of the same ingredients found in German potato salad like the bacon, green onions, and chopped pimento. It also incorporates a few unique ingredients which, when combined, give the dish some seriously delicious dimension. These unique ingredients include mayonnaise, melted cheese, and a scant amount of apple cider vinegar. This loaded baked potato casserole recipe has all of the hallmarks of a twice baked potato while holding true to the flavors of an authentic German potato salad!