Ingredients

  • 1/2 cup sour cream
  • 3 tablespoons prepared horseradish
  • 1 tablespoon chopped fresh chives
  • 1 teaspoon honey
  • 1 teaspoon red wine vinegar
  • Kosher salt, freshly ground pepper
  • 2 tablespoons olive oil, divided
  • 1 1-pound rib-eye, flank, or skirt steak
  • Kosher salt, freshly ground pepper
  • 12 ounces fingerling potatoes, thinly sliced
  • 1/2 English hothouse cucumber, thinly sliced
  • 6 radishes, cut into thin wedges
  • 2 cups greens (such as arugula or torn Bibb lettuce leaves)

Method

  • Whisk sour cream, horseradish, chives, honey, and vinegar in a small bowl; season with salt and pepper.
  • Heat 1 tablespoon oil in a large skillet, preferably cast-iron, over medium-high heat. Season steak with salt and pepper. Cook over medium-high heat until cooked to desired doneness, 5-8 minutes per side for medium-rare rib eye, about 4 minutes per side for flank steak, or 3 minutes per side for skirt steak. Transfer meat to a plate and let rest for 10 minutes.
  • While steak rests, wipe out skillet and heat remaining 1 tablespoon oil over medium-high heat. Add potatoes, season with salt, and cook, tossing occasionally, until tender, 8-10 minutes.
  • Slice steak and serve with horseradish dressing, potatoes, cucumber, radishes, greens, and Pickled Red Onions.