Step 1

Place potatoes in a large pot of salted water and bring to a boil. Cook until potatoes are very tender and easily pierced with a paring knife, 10–15 minutes, depending on the size of your potatoes. Drain and let cool 10 minutes.

Step 2

Lightly crush potatoes with your hands (or press with the bottom of a small bowl); transfer to a serving bowl.

Step 3

Add preserved lemon, brine, and butter to bowl with potatoes and toss until butter is melted and potatoes have soaked up dressing (they should taste extremely lemony). Add chives, dill, and lots of pepper and toss again evenly distribute. Taste potatoes and add more brine and season with more salt and/or pepper if needed.