The Tangy Dressing:
Cook the bacon: In a large skillet over medium heat, fry the bacon slices until they are completely crispy. Transfer them to a paper-towel-lined plate to drain. Once cooled, chop or crumble them into small bits. Save 2 tablespoons of the warm bacon grease from the pan if you want to use it in your dressing.
Boil the potatoes: Place the potato chunks in a large pot and cover them with cold water by about an inch. Add a generous tablespoon of salt. Bring to a boil, then reduce heat to a simmer and cook for 10 to 12 minutes until the potatoes are fork-tender but still hold their shape. Drain well.
The Brine Splash (The Secret Step): While the potatoes are still hot in the colander, transfer them back to the warm pot or a large bowl. Drizzle the ⅓ cup of dill pickle juice directly over the warm potatoes. Let them sit for 10 minutes. The hot potatoes will absorb the brine like a sponge, flavoring them from the inside out.
Whisk the dressing: In a small bowl, whisk together the olive oil, Dijon mustard, apple cider vinegar, minced garlic, celery seed, salt, and pepper until emulsified.
Assemble: Add the chopped dill pickles, most of the sliced green onions, diced red onion, three-quarters of your crumbled bacon, and fresh dill to the brined potatoes. Pour the mustard dressing over the top.
Toss and chill: Use a rubber spatula to gently fold everything together so you don't mash the potatoes. Cover and refrigerate for at least 2 hours before serving. The flavors get sharper and better as it sits!
Garnish and serve: Just before serving, top the salad with the remaining crispy bacon bits so they stay crunchy, along with a few extra slices of green onion.
Make-Ahead & Safety Tips