Red Grapefruit Salad with Avocado & Pistachios

Remove skin and white pith from grapefruit with a sharp knife and discard. Cut each grapefruit into 1/2-inch-thick round slices.

Whisk vinegar, shallot, honey and mustard in a medium bowl. In a slow, steady stream, whisk in oil until well combined. Season with kosher salt and pepper.

Arrange the grapefruit slices, avocado slices, pistachios and chervil (or watercress) on a serving platter. Drizzle with the dressing. Serve sprinkled with Maldon salt and more pepper, if desired.