Poaching white fish in moderately hot oil guarantees soft-textured flesh and allows you to prepare a sauce calmly, without the usual panic about overcooking the fish.

The combination of olive oil, garlic and lemon juice lifts the spirits in winter.

Greek yogurt with some olive oil stirred in can transform many dishes.

Yogurt sauce, as you may have noticed by now, is a regular presence in my recipes - that's because it has the ability to round up so many flavours and textures like no other component does.

Tahini is fantastically versatile, its deep, nutty flavour a harmonious match with roasted vegetables, grilled oily fish or barbecued meat.

Sweet potatoes are ideal for lazy days: just bake, then mash and mix with yogurt, butter or olive oil.