gistfile1.cs

public ActionResult SetCookies()
        {
            Response.Cookies.Add(new HttpCookie("Cookie1", "Test 1"));
            Response.Cookies.Add(new HttpCookie("Cookie2", "Test 2"));
            Response.Cookies.Add(new HttpCookie("Cookie3", "Test 3"));

            return View("Index");
        }

        public ActionResult DeleteCookies()
        {

            foreach (var cookie in Request.Cookies.AllKeys)
            {
                var newCookie = new HttpCookie(cookie);
                newCookie.Expires = DateTime.Now.AddDays(-1D);
            	Response.Cookies.Add(newCookie);
            }

            return View("Index");
        }