Jack In The BoxAn extra Hamburger Patty on your BurgerBurgerAsk for any amount of additional Hamburger Patties on your Burger.All Locations4 - Medium$1.00 per pattyhttp://hackthemenu.com/jack-in-the-box/secret-menu/additional-hamburger-patties/The " Additional Hamburger Patties " is another neat secret on the Jack In the Box secret menu. In addition to the standard amount of burgers, you can fill your hamburger with as much meat as your heart desires. How crazy does that sound? So, if a normal burger can't even come close to filling you up (or you just like a big challenge), take a chance by asking for additional hamburger patties from the Jack In the Box Secret Menu. Just ask for "x" amount of additional hamburger patties when ordering. Ordering additional hamburger patties can make one burger enough to satisfy yourself (and a few others if you go big). When ordering, don't forget to order a big drink to wash it down! Be sure to check out the Jack In The Box Secret Menu as well as visiting our home page to check out the complete list of All the Secret Menus from all your favorite restaurants!