Black Bean Gratin in black bean and garlic

Prep everything first: chop the aromatics, measure the black bean and garlic elements, and pat the black bean 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.

Add the black beans and smoke until it takes on colour and the edges catch, 4 to 6 minutes.

Stir in the light soy sauce and the rest of the black bean and garlic flavours, letting them cook out for a minute until fragrant.

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