Salsa de calçots (Calçots' sauce) is a Catalan sauce originating in Valls, province of Tarragona in the region of Catalonia, which is served almost exclusively with calçots at the calçotades, a traditional local barbecue.
It is similar to romesco sauce with the difference that it is thickened with toast rubbed with fresh garlic, moistened with a little vinegar and pulverized.
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