68 Calle De Viriato, Madrid, ES • Chamberí
The one burger bar in a Madrid smash-burger chain built so gluten never enters the kitchen; La Clásica comes on GF brioche
We last checked this spot on May 29, 2026 · Sansglu Editorial methodology
The Sansglu take
The place
A brick-walled smash burger counter on Calle de Viriato in Chamberí. The chain has grown across Madrid, but this location was built from scratch to run without gluten.
The gluten-free setup
This branch operates fully gluten-free: nothing containing gluten comes into the kitchen, so patties, buns and fryer stay GF-only. The chain's other Madrid branches are not gluten-free; make sure you're at Viriato 68.
What to order
La Clásica, double smashed aged-beef patties with cheese, onion and pickles on a gluten-free brioche bun. The menu lists fries from the all-GF kitchen and combo formats with a drink.
The move
Split hours, roughly 13:00 to 16:00 and 20:00 to 23:00. There's no phone, so order ahead on a delivery app or show up at opening; the counter is small.
Sansglu Editorial · Updated May 29, 2026
Gluten-free setup
Current facility and preparation details supported by our research.
- ✓Dedicated facility
Gluten-free options
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