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Wahaca x The Dusty Knuckle: Free Mexican Sandwiches
September 16, 2025 @ 12:00 PM - 2:00 PM
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Taking the humble sandwich to a bold, flavourful and marvellously Mexican new level, Wahaca this month teams up with acclaimed independent bakery The Dusty Knuckle to introduce the Birria Torta, making its debut on Wahaca’s menus from 17th September.
Inspired by the popular sandwich-style snack enjoyed throughout Mexico, it’s packed generously with slow-cooked birria beef, roasted red onion, pickled vegetables, creamy avocado, grilled cheese, coriander leaf and a punchy jalapeño aioli. But the torta’s tastiness doesn’t stop there. It’s served with a side of rich, aromatic birria broth for dipping – the ultimate umami upgrade. The flavoursome fillings are sandwiched between two slices of freshly-baked bread, from a recipe crafted especially for Wahaca by The Dusty Knuckle.
To celebrate the launch, Wahaca’s co-founder, Thomasina Miers, will be joining The Dusty Knuckle team to give away 100 Birria Tortas for free outside Wahaca Southbank (Lower level, Queen Elizabeth Hall, London SE1 8XX) from 12 pm until 2 pm on Tuesday, 16th September. Once they’re gone, they’re gone – but anyone who can’t make it needn’t miss out as the torta officially joins the menu at all Wahaca restaurants from the following day.


