- 2 tablespoons white-wine vinegar
- 1 teaspoon sugar
- 1/4 teaspoon salt
- 2 tablespoons extra-virgin olive oil
- 1/2 pound pickled herring, drained
- 1 (16 ounce) jar sliced pickled beets, drained
- 6 ounces watercress, coarse stems discarded
- 2 medium Belgian endives, cut crosswise into 1/2-inch-thick slices and cores discarded
- Whisk together vinegar, sugar, and salt until sugar is dissolved, then add oil in a slow stream, whisking.
- Arrange herring and beets on a platter and drizzle with half of vinaigrette.
- Toss watercress and endives with remaining vinaigrette, then mound over herring and beets.