Mark Rosati, culinary director of Shake Shack, stops by the MUNCHIES Test Kitchen to show us how to make Shake Shack's cheese and fudge sauces, homemade French fries, and their signature black and white milkshake. WATCH NEXT: How to Make a Perfect Cheeseburger with Matty Matheson - bit.ly/2vbApfc Subscribe to Munchies here: bit.ly/Subscribe-to-MUNCHIES Check out munchies.tv for more! Follow Munchies here: Facebook: facebook.com/munchies Twitter: twitter.com/munchies Tumblr: munchies.tumblr.com Instagram: instagram.com/munchiesvice Pinterest: www.pinterest.com/munchies Foursquare: foursquare.com/munchies More videos from the VICE network: www.fb.com/vicevideo