The chips recipe sounds more like a gratin recipe where someone forgot the cream. I've got to admit, though, my heart sank a little when you disposed of the bacon renderings and added mayonnaise in the Swiss Bacon dip.
Pro Tip: Instead of mayo, drain and reserve the bacon fat. Whip one chicken yolk (Just the yolk, mind you; no albumen) with a sprinkling of salt until the yolk thickens slightly and is notably lighter in color. Add about a tsp of dijon mustard (or less if you like; the lecithin from the yolk should provide all of the emulsifying power you need, really.), a pinch of ground red pepper (cayenne), and whisk to combine. Once everything is fully integrated, SLOWLY pour the bacon renderings into the yolk while you continue to whisk. Drizzle that liquid love in. If you pour too quickly, or, God forbid, just dump it in, you'll end up with a nasty oil slick instead of a lovely sauce. After you've established a good emulsion and added all of the bacon fat, season with salt, black pepper, and lemon juice to taste. I personally would run a garlic clove through a microplane, or use the flat of a blade to turn it into a paste, and add that to the bacon aioli.