1 cup shallots halved lengthwise very thinly sliced
1 large pinch paprika smoked
3 cups watercress wild trimmed coarsely chopped
3 pounds baby yukon gold potatoes
Equipment
bowl
sauce pan
whisk
Directions
Place shallots in a small bowl. Stir in 6 tablespoons red wine vinegar and a large pinch of salt; set aside.
Cook potatoes in a large saucepan of boiling salted water until just tender, about 30 minutes.
Drain potatoes well; transfer to a large bowl. Lightly crush potatoes with the back of a large spoon; transfer to a large bowl.
Add shallot-vinegar mixture to hot potatoes and toss to incorporate. Season with salt and pepper.
Whisk 1 cup mayonnaise and smoked paprika in a small bowl; add to potatoes and toss to combine. Fold in watercress, beans, and eggs and season to taste with salt, pepper, and more vinegar, if desired.
Garnish with parsley. DO AHEAD: Can be made 1 day ahead. Cover and chill. Return to room temperature before serving, if desired, stirring in additional mayonnaise if dry.