"2018-06-08T15:00:40+00:00","description":false,"recipeIngredient":["1 (1 1\/2-pound) boneless rib-eye steak (preferably dry-aged)","2 cups unsalted butter or rendered beef tallow, plus 2 tablespoons unsalted butter","1  white onion","1 (5-ounce) piece horseradish (2 to 3 inches)","2 tablespoons buttermilk","kosher salt","4  Pain de Mie Buns or 8 slices soft slab bread","16 to 24  dill pickle slices"],"recipeInstructions":[{"@type":"HowToStep","text":"Chill the steak in the freezer until firm to the touch b