Cook the bacon in a large skillet over medium heat turning occasionally, until crispy, about 8 minutes. Transfer to a paper-towel lined plate to cool, reserving the drippings. Crumble the cooled bacon and refrigerate until serving time.
Discard all but 1 tablespoon of the drippings. Saute the onion in the drippings until tender about 5 minutes. Turn off the heat and add the vinegar, mustard, flour, salt and pepper. Stir well to combine. Scrape mixture into the slow cooker.
Add the potatoes and celery. Stir well to coat with dressing.
Cover and cook on LOW until the potatoes are tender when pierced with a sharp knife, 6 to 8 hours.
When ready to serve stir in the dill and crumbled bacon.
Notes
Serving size: 1/3 cupWW Points: 1Check the WW Points for this recipe and track it in the WW app. (Must be logged into WW on a smartphone or tablet.)3SmartPoints (Green plan)3SmartPoints (Blue plan)1SmartPoints (Purple plan)3PointsPlus (Old plan)Packed with flavor thanks to generous amounts of vinegar, whole grain mustard and dill, it tastes great served warm or at room temperature.I made a half batch which resulted in 6 small servings of about 1/3 cup each.