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Shake Shack is offering a sweet deal this summer.
They are offering a buy one shake and get one free every weekday for the rest of the summer.
Whether you prefer classic flavors like chocolate and vanilla or featured drinks like the sprinkle cookie shake or the Oreo cookie funnel cake shake, customers can order two shakes for the price of one.
Specifically, the promo applies to online orders on Mondays through Fridays from 2:00 pm to 5:00 pm until Aug. 31.
All you have to do to grab a free shake is head to the Shack app or website and add two milkshakes to their cart. The dessert order must be scheduled for a weekday between 2:00 pm and 5:00 pm for the promo code SHAKEUP to work.