Ingredients

  • (4-pound) beef tenderloin, trimmed and tied
  • 1 tablespoon kosher salt, more to taste
  • 1 teaspoon black pepper, more to taste
  • 1 teaspoon chopped fresh rosemary
  • 1 fat garlic clove, coarsely chopped
  • 2 tablespoons extra-virgin olive oil
  • 2 cups crème fraîche
  • ¼ cup white horseradish
  • Grated zest of half an orange