
Heat the oven properly before anything else
Set the oven to 220°C (425°F) with a rack in the upper third and give it a full fifteen minutes to come up to temperature — most ovens announce themselves long before they are genuinely hot, and a lukewarm oven is the single most common reason skin steams instead of crisps.
While it heats, halve the potatoes so every piece has a flat face to sit against the pan, and cut the carrots into thick coins rather than thin batons. Uniform, chunky pieces roast at the same rate and hold their shape through the full twenty-five minutes.
Tip · Pat the chicken dry with kitchen paper and leave it uncovered on the counter while the oven heats. Dry skin is crisp skin.



