Code Review for a Sample C# Code

csharpCodeSample.cs

public IEnumerable<GitHubUser> FavoritesList()
{
      CookieHelper cookieHelper = new CookieHelper(this.HttpContext);
      HttpCookie httpCookie = cookieHelper.SetAndGetHttpCookies();
      MyCookie myCookie = new MyCookie()
      {
           ID = Convert.ToInt32(httpCookie["userId"])
      };
      List<GitUser> favoritesList = new List<GitUser>();

      using (var db = new GitHubContext())
      {
           var results = (from ch in db.CookiesHistory
                          where ch.UserId == myCookie.ID
                          select new { GitUserId = ch.GitUserId });

           foreach (var result in results)
           {
                var user = (from u in db.GitUsers
                            where u.Id == result.GitUserId
                            select new { u }).First();

                favoritesList.Add(user.u);
            }
       }

       return favoritesList;
 }