Wrinkled Potatoes with Spicy Red Mojo as Prepared on the Island of Tenerife

There’s a nice story about how papas arrugadas, a Canary Islands tapas bar specialty, came about: Because fresh water is fairly scarce on the islands, potatoes were often cooked in seawater. A certain cook forgot her potatoes were on the stove and returned to discover all the seawater had boiled away and her potatoes were sizzling in the salt residue. She removed the potatoes from the fire, covered the pan, and shook it to loosen the stuck-on salt. When she lifted the lid, she discov