带有包含请求的循环的回调数组

我试图返回食谱数组，但它似乎是空的。我猜那是因为回调在循环执行之前被执行。我怎么能解决这个在这种情况下，我循环与cheerio?

function scrapeNow(url, callback) {
  request(url, function(error, response, html){
    // First we'll check to make sure no errors occurred when making the request
    if(!error){
      var recipes = [];
      var $ = cheerio.load(html);
      $('div.article-block a.picture').each(function(i, elem) {
        console.log(i);
        var deepUrl = $(this).attr('href');
        if(!$(this).attr('href').indexOf("tema") > -1) {
          request(deepUrl, function(error, response, html){
            // First we'll check to make sure no errors occurred when making the request
            if(!error){
              var $ = cheerio.load(html);
              var image = $('div.article div.article-main-pic img').attr('src');
              var title = $('div.recipe h2.fn').text();
              var object = {url: deepUrl, title : title, image : image};
              recipes.push(object);
            }
          });
        }
      });
      callback(recipes);
    }
  });

}