Mediterranean Tray-Baked Chicken

Chicken on the bone, breast and thigh together, isn't an accident of butchery — it's insurance. Breast meat cooks faster and dries out faster; thigh is more forgiving because it carries more fat and connective tissue that keeps basting the meat from inside as it melts. Put them on the same tray and the thighs buy you a margin of error the breast alone wouldn't give you. If you only have breast, watch it harder — it goes from done to sawdust in a few careless minutes, and there's no fat reserve to save you from being distracted by the yogurt sauce.

Lemon zest, not juice, goes into the marinade with the dried herbs — zest brings the oil of the peel, which is where the actual lemon smell lives, without the acid that would start "cooking" the surface of the chicken the way it does in a ceviche, tightening the flesh before the oven ever gets to it. Juice comes later, on the rocket, cold, where acid is exactly what you want — it wakes the leaves up and cuts through the richness of everything else on the plate.

Dried oregano, thyme, rosemary: use dried here, not fresh, and not out of poverty — dried herbs survive forty-plus minutes in a hot oven; fresh ones mostly just scorch and turn bitter before the potato's even soft. If you've only got fresh, add it at the very end, scattered over the finished tray, where it can smell like itself instead of like ash.

Feta added raw to the tray in the last stretch isn't there to melt — it's a salty cheese, not a melting one, so what you're after is it softening and slumping slightly at the edges, taking on a bit of colour, while staying mostly itself. If you push it in too early it just dries out and goes rubbery. Any firm, salty, brined white cheese does the same job — a feta-style block, a young pecorino in a pinch — the criterion is "holds its shape under heat and tastes of salt," not the label on the packet.

The tzatziki is where most people lose patience, and it's the one place patience actually matters. Grated cucumber is mostly water held in by cell walls; salt pulls that water out by osmosis, and if you skip the five-to-ten-minute rest or skimp on the squeezing, that water goes straight into your yogurt and turns a thick sauce into a thin, sad one that pools on the plate. Some say you can just grate and mix — no, because you end up tasting watered-down yogurt instead of cucumber. The squeeze is the whole trick; do it properly, with your hand or a clean tea towel instead of a delicate sieve, and the sauce stays thick enough to sit on the fork.

Greek yogurt specifically, not regular yogurt, because it's already been strained once at the dairy — more protein, less water, which is exactly the texture tzatziki needs before you even start adding cucumber. Regular yogurt will work in an emergency but you're fighting the same watery-sauce problem twice over.

Garlic goes in crushed and raw, straight into the cold yogurt — it never sees heat, so there's no mellowing, no sweetness from cooking it out. That sharp, slightly aggressive bite is correct; it's there to cut the fat of the chicken skin and the roasted potato, not to be gentle. If raw garlic genuinely disagrees with you, halve it rather than cooking it — cooked garlic in a cold sauce just tastes like a different, muddier thing.

Olive oil here is doing two unrelated jobs and you don't need the expensive bottle for either. On the tray it's a heat-transfer medium and a browning agent — any neutral oil with a high enough smoke point does that job, though olive oil's flavour is part of what makes this dish taste Mediterranean rather than generically roasted. In the tzatziki and on the rocket it's raw, so there its own taste matters more — use the better oil there if you're going to be choosy about it anywhere.

This feeds four the way a Sunday roast feeds four — generously, with the tray doing visible work rather than being topped up course by course. Scale the potatoes and chicken up together if you're feeding more, but don't scale the tray size down to match a small oven; better to run two trays and swap their shelves halfway than to crowd one and end up steaming everything into a uniform greyish softness instead of letting it brown.