Burger King offering 1-for-1 Mushroom Swiss burgers from 12 – 17 Oct 25

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This is not a drill — Burger King is celebrating Mushroom Day in the best way possible. From 12 to 17 October, your all-time favourite Mushroom Swiss burgers are going Buy 1 Get 1 FREE!

Whether you’re a breakfast person or a lunch-dinner kind of king, there’s a shroomy delight waiting for you:

  • Mushroom Swiss Croissan’wich® with Egg — Code: SHROOM11 (Breakfast only)
  • Single Mushroom Swiss — Code: SHROOM22 (Lunch & Dinner)
  • Mushroom Swiss Tendergrill® — Code: SHROOM33 (Lunch & Dinner)

Simply enter the code via the ordering kiosk to redeem the offer! Tag your burger bestie or go solo and double up — we’re not judging. 😉

Just remember, this 1-for-1 deal is only sizzling from Oct 12 to 17, so grab it before it’s gone!

Available at participating Burger King® outlets across Singapore.
T&Cs apply. While supplies last.

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