How to Make a Roast Dinner Finish at the Same Time

A roast dinner is not a cooking problem, it is a scheduling problem. Every dish has a length and a temperature, one oven has a single temperature at a time, and there is one moment you want everything ready. So you work backwards from that moment, not forwards from now.

Add each dish as you work out its time and get one schedule, with oven clashes flagged: Meal Synchroniser

1. Fix the eating time. Everything else is derived from it.

2. Place the meat first. It is the longest dish and the least flexible. Its start time is the eating time minus its cooking time minus its resting time.

3. Use the rest as your hot window. While the joint rests under foil, the oven is free and can go up. Roast potatoes, parsnips and Yorkshire puddings belong here.

4. Fill in the hob and the last ten minutes. Vegetables, gravy and anything that only needs a few minutes go last, because they are the easiest to hold.

If you would rather enter the finishing time and be told when to start each dish, that is exactly what Target Finish Time does.

The usual failure is two dishes wanting the oven at different temperatures at the same time. There are only four honest ways out: cook them at different times, accept a compromise temperature within both dishes' acceptable range and adjust the time, move one dish to the hob, air fryer or microwave, or drop it.

The planner will tell you when two dishes cannot share the oven rather than quietly averaging the temperature. If you are converting between fan and conventional figures while you plan, do it with the Fan Oven Converter.

A 1.8 kg chicken needing about 90 minutes plus a 20 minute rest goes in at about 11:10. Roast potatoes needing 50 minutes at a higher temperature start around 12:05, alongside the chicken for its last 25 minutes and then alone in a hotter oven once the chicken comes out at 12:40. Vegetables go on the hob at 12:45, gravy is made from the resting juices at 12:50, and everything is on the table at 1pm.

Those individual times come from Roast Potatoes, Roast Vegetables and Gravy, the schedule is just arithmetic on top of them.

Peel and par-boil potatoes in the morning and leave them dry in the roasting tin. Make the batter for Yorkshire puddings early and leave it to rest. Prepare vegetables and keep them in cold water. Make gravy base from a stock cube and improve it with the roasting juices at the end. None of this shortens the cooking, but all of it removes work from the busiest 20 minutes.

No resting time in the plan. Meat needs it, and it is the most valuable oven window you have.

Counting oven space by dish, not by shelf. Two trays of potatoes at once brown much less well than one.

Starting a timer for a dish that has already begun. If you are running late, adjust the finishing time rather than restarting timers.

Timers for the individual steps: Kitchen Timers.