How to Make It
Light a grill and oil the grate. Brush the steaks all over with olive oil and season generously with salt and pepper. Grill over moderately high heat, turning once, until medium-rare, 6 to 8 minutes. Transfer to a carving board and let rest for 5 minutes.
Meanwhile, in a medium bowl, mix the 1/3 cup of olive oil with the vinegar, radish and apple. Season the vinaigrette with salt and pepper. Carve the steaks against the grain and serve with the vinaigrette.