Delicate Cod Gratin with dashi and scallion

Prep everything first: chop the aromatics, measure the dashi and scallion elements, and pat the cod dry so it colours well.

Warm the olive oil in a large pan over a medium heat and soften the onion and garlic until sweet and translucent, about 5 minutes.

Turn up the heat and add the cod. Reduce the glaze until sticky, then turn to coat everything in a glossy lacquer.

Stir in the soy sauce and the rest of the dashi and scallion flavours, letting them cook out for a minute until fragrant.

Add the carrots along with a splash of stock or water, then cook briskly until everything is tender and the sauce clings.

Taste and adjust the seasoning with salt, pepper and a little acid. It should taste bright, savoury and balanced.

Finish with the chopped scallion and serve while hot.