Free Shake Shack Burger

Shake Shack is offering a free burger when you use coupon promo code NEWYEAR

OFFER IS GOOD UNTIL 1/3/2021

Step 1
Download the Shake Shack App

Step 2
Create / Sign in to your account

Step 3
Add one of the followings

• ShackBurger
• SmokeShack
• Hamburger
• Cheeseburger
• Hot Chick'n
• Chick'n Shack
• Shroom Burger

Step 4
Offer states you need to add 2 burgers, but adding a topping to your burger seems to work!

Step 5
Use promo code NEWYEAR