At Morito we are quite particular about the crisps we use for this tortilla, preferring the delicate Spanish crisps cooked in olive oil. We buy ours from La Fromagerie, the wonderful cheese shop with branches in Highbury and Marylebone in London, but you will be able to find similar crisps in speciality food shops. This recipe is a variation on one in
Ferran Adrià’s brilliant book