Shake Shack is offering a buy one, get one promotion on all classic and featured shakes, available weekdays from 2 to 5 p.m. through the end of August.
Here’s how it works:
- Open the Shack App or head to shakeshack.com to place an order
- Add two shakes to your cart
- Make sure your order is scheduled for a weekday (M-F) 2-5PM at your local Shack
- Use code SHAKEUP at checkout
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