Steak Salad with Horseradish Dressing Recipe

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
• 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)
• Pickled Red Onions