Mix mayonnaise, onion powder, garlic, and crème fraîche in a large bowl – season with salt and pepper and possibly sugar.
Rinse the dill and dry it (dab with a tea towel or use a salad spinner).
Chop the dill finely and add it to the dressing.
Halve the chili and remove the stem and seeds. Chop it finely and add it to the dressing.
Drain the capers and chop them (save a few whole capers for garnish, if desired).
Rinse the spring onion, chop the white part finely and add it to the dressing.
Cut the green part of the spring onion into fine strips and save them for garnish.
Stir the dressing well to evenly distribute the ingredients, then add the potatoes.
Refrigerate the potato salad until needed.
Top the salad with pork cracklings, spring onions, and capers, and serve with grilled meat, sunshine, and a cold beer!