Borraja con Patatas

Borage (borraja, Borago officinalis) is a Mediterranean herb whose flowers and young leaves Anglo cooks use as garnish — but in Aragon, the thick mature stems are the prize. The Ebro valley around Zaragoza is the centre of Spanish borage cultivation; it is one of Aragon's flagship vegetables, accounting for roughly 75% of Spanish borage production. The dish dates to medieval kitchen-garden cooking. Aragonese tradition specifies the refrito of garlic, pimentón, and vinegar — known locally as ajada — which converts a humble boiled vegetable into a registered regional plate.

Aragonese borage stems with potato — the Ebro valley around Zaragoza is Spain's borage capital, with regional Denominación Específica protection. Stems carry silica trichomes; mechanical peeling is non-negotiable, boiling alone won't soften them.

Borage stems are pale jade, soft like cooked celery but less stringy, with a flavour somewhere between cucumber and oyster — faintly briny, vegetal. Potato cubes are floury-soft, neutral foil. The garlic-pimentón oil pools at the bottom of the dish; you tilt to spoon it back. Cool-eating dish, not hot — heat blunts borage's clean herbal note. If your borage is hairy on the tongue, the peeling was incomplete and the dish is unsalvageable.

Borage stems carry tiny silica hairs (trichomes) on their surface — same compound as cactus spines. Boiling alone doesn't soften them; only mechanical peeling removes them. This is the dish's load-bearing prep step. The refrito is built off-heat for two reasons: pimentón scorches above 150°C, and the vinegar splash arrests any garlic over-browning instantly. Vinegar is essential — it lifts the borage's faintly metallic mineral note and brightens the potato.