Tangy Herb Potato Salad

Why This Tangy Herb Potato Salad Works

During boiling, the potatoes soak up some of the salted water and their starch loosens. They soften all the way through but still hold their shape. Letting them cool a bit before peeling and cutting keeps them from breaking down into mush when they hit the bowl.

In the bowl, the mayonnaise and sour cream make a thick, creamy base that clings to the warm potato pieces. The apple cider vinegar and Dijon mustard thin that mixture just enough so it can slide into the tiny cracks and edges of each potato chunk. As the potatoes sit in the dressing, they slowly drink in some of that tangy liquid.

Fresh parsley, dill, green onions, and red onion stay crisp and bright because they are added to the cool dressing, not cooked. While the salad rests in the fridge, the herbs and onions spread their taste through the creamy coating, and the surface of the potatoes firms up again. By serving time, the salad is chilled, the potatoes are tender but not falling apart, and every bite is evenly coated.

Mistakes To Avoid

Boiling the potatoes until they are falling apart makes the salad heavy and mushy. The pieces break down when folded into the dressing, so the potatoes smear into a paste and the salad turns gluey instead of having soft chunks.

Cutting the potatoes while they are still very hot can cause them to crumble and steam out too much moisture. The hot steam also thins the dressing on contact, so it slides off the potatoes and leaves a wet, loose salad.

Skipping the chill time in the fridge leaves the salad tasting flat and uneven. The dressing doesn’t have time to soak into the potatoes, so some bites are sharp and vinegary while others are bland, and the texture stays a bit loose instead of setting slightly.

Adding way more vinegar than listed makes the dressing too runny. The extra liquid thins the mayo and sour cream, so it pools at the bottom of the bowl and the potatoes stop holding a creamy coating.