Zarangollo

Ingredients

• 1 white onion
• 1 eggplant
• olive oil
• 1 egg

Method

Zarangollo is a Basque side dish that hinges on pan-cooking eggplant and onion until they collapse into soft, caramelised strands bound in their own oil. The technique is straightforward but demands attention: you're building flavour through caramelisation while keeping the vegetables from breaking apart entirely.

Julienne the onion into thin, even strands — aim for roughly 3mm width. Cut the eggplant into small dice, no larger than a teaspoon; uneven pieces cook unevenly and the dish loses its cohesion. Heat olive oil in a wide, moderately deep pan over medium heat until shimmering. Add both vegetables and stir gently every minute or so. The eggplant releases water initially, turning the pan soupy. This is normal. After 8–10 minutes the liquid evaporates and the vegetables begin to soften and turn translucent. Keep stirring. At 15–18 minutes, the edges of the eggplant will develop a light caramel colour and the onion will turn amber and sticky. The vegetables should be tender enough to collapse under gentle pressure from your spoon, not crunchy.

Raise the heat to medium-high for the final 2–3 minutes. You're looking for patchy browning on the vegetables — not charring, which brings bitterness, but colour that signals caramelisation is complete. The oil will pool slightly and smell nutty and rich, not burnt. If it smells acrid, you've overshot; this can't be undone.

If you're adding an egg, turn off the heat and crack it directly onto the warm vegetables. The residual heat will set the white gently whilst the yolk stays soft. If the yolk breaks during the crack, stir it through to make a loose scramble; it's forgiving and equally good. Serve warm, in the pan or plated with all that infused oil. The oil itself is precious — bright, flavoured by hours of gentle cooking — and should never be wasted. Save it for dressing greens or frying bread the next day.