Method · Hot and dry
Roast
Let the oven do the work, and get brown edges every time.
Roasting is hot, dry air all the way around the food. It is the least hands-on way to cook: you set it up right, close the door, and do something else. The set-up is the skill.
This lesson is free, start to finish. So is every other one.
At a glance
- Best for
- Vegetables, whole chickens, pork loin, large cuts, sheet-pan dinners
- Heat
- 425 to 450°F for vegetables and birds. 325 to 350°F for big roasts.
- Time
- 20 minutes to a few hours
- Level
- Start here
What you need
- Two rimmed half-sheet pans
- Heavy ones. Thin pans warp and burn.
- A wire rack that fits the pan
- Lifts meat so hot air reaches the underside.
- Instant-read or probe thermometer
- Roasts are done by temperature, not by the clock.
- An oven thermometer
- Most ovens are off by 15 to 25 degrees. A cheap one tells you by how much.
Why it works
Hot air dries the surface, and a dry surface browns. The food has to sit in moving air to do that. Pile vegetables on top of each other and the ones underneath steam in the water coming off the ones on top.
High heat browns fast, which is what you want for small things that cook quickly. Lower heat cooks a big roast evenly before the outside burns. That’s why there are two temperature ranges.
Vegetables
- Heat the oven to 425°F with the sheet pan inside. A hot pan starts the browning the second the food lands.
- Cut the vegetables the same size. Dry them well.
- Toss with enough oil to make them shine, and salt.
- Spread them in one layer with space between. Use two pans before you crowd one.
- Roast until the bottoms are brown, then turn once. Most take 20 to 35 minutes.
- Finish with acid: a squeeze of lemon or a splash of vinegar while they’re hot.
A whole chicken
A whole bird has a problem: the breast is done at 165°F and dries out past it, while the legs want 175°F or more. Spatchcocking fixes it. Cut out the backbone with shears and press the bird flat, so the legs and the breast sit level and cook at the same rate.
Salt it the day before and leave it uncovered in the fridge. The salt seasons the meat and the fridge air dries the skin. Roast it at 450°F on a rack for 40 to 50 minutes. Pull it when the breast reads 157°F and the thigh 175°F, then rest it 10 to 15 minutes. The breast climbs to a safe 165°F while it sits.
Big roasts
- Salt it a day ahead. Big cuts need time for salt to travel in.
- Roast on a rack at 325 to 350°F so the middle cooks before the outside dries.
- Go by temperature. Pork loin comes out at 145°F. Start checking early.
- It keeps cooking after it leaves the oven. A large roast climbs 5 to 10 degrees while it rests. Pull it early.
- Rest it 15 to 20 minutes before you cut. Make the pan sauce while you wait.
Convection
A convection setting runs a fan that moves the hot air. It browns faster and more evenly. Drop the temperature 25 degrees from what the recipe says and start checking early. An air fryer is the same idea in a small box.
When it goes wrong
- Soft, pale vegetables
- Crowded pan, wet vegetables, or an oven that wasn’t hot. Two pans, dry them, and preheat the pan too.
- Burnt outside, hard inside
- The pieces were too big for the heat. Cut smaller, or drop to 400°F and give them longer.
- Dry chicken breast
- It went past 165°F. Pull at 157°F and let the rest finish it. Spatchcock so the legs keep up.
- Rubbery chicken skin
- Wet skin. Dry it overnight in the fridge, uncovered, and roast hot.
- A gray ring around the roast
- The oven was too hot for the size. Lower the heat, or use the reverse sear.
Practice on these