Roasted beetroot and buckwheat with mustard dressing

Beetroot and buckwheat make a supper whose parts can be prepared separately: vegetables roast in the oven, the grain cooks in a saucepan and the dressing comes together in a small bowl. The result is a warm meal with tender beetroot, a loose grain base and a sharp mustard dressing. This original home-style version makes four moderate portions and can be adjusted to your appetite and available ingredients.

The recipe starts with raw beetroot cut into small pieces. Ready-cooked beetroot is an alternative, but it needs a different sequence: do not roast it for the entire time intended for raw vegetables. The main task is to coordinate the vegetables and grain, keeping the dressing until the end.

Ingredients for four portions

• 700 g raw beetroot, weighed after peeling;
• 250 g dry buckwheat;
• 1 small red onion;
• 3 tablespoons vegetable oil: two for roasting and one for the dressing;
• 1 tablespoon cider vinegar;
• 2 teaspoons prepared mustard;
• optionally, 1 teaspoon honey or sugar;
• 2–3 tablespoons water for the dressing;
• salt and black pepper to taste;
• a little dill or parsley to serve.

Measure the water for the buckwheat according to its packet: processing and preparation requirements can differ. Ready-cooked beans or cheese can make the meal more substantial, but neither is essential to the basic recipe. Check mustard and additional ingredients against the dietary needs of the people eating.

Start with the beetroot

Heat the oven to approximately 200°C using conventional top and bottom heat. Peel the beetroot and cut it into pieces about two centimetres across. Very uneven pieces make cooking awkward: small edges may dry out while the centres of larger pieces remain firm.

Toss with two tablespoons of oil and a little salt and pepper. Spread in one layer on a baking tray or in a wide dish. Cut the onion into thick wedges and set aside for now. If the beetroot forms a crowded heap, use a second dish instead of increasing the temperature to compensate.

Allow roughly 35–50 minutes for roasting. The pieces and oven determine the actual time, so test with a knife: it should enter without substantial resistance. Turn the beetroot around halfway through and add the onion. If the edges darken quickly, lower the heat and check the tray position.

Cook the buckwheat separately

While the oven is working, prepare the buckwheat according to its packet. Do not add the dressing ingredients to the cooking water: doing so makes it harder to adjust salt and acidity independently afterwards. Let the cooked grain rest under its lid briefly, then loosen it gently with a fork.

If the water has gone but the grain is not ready, follow the packet guidance and add liquid gradually. Constant stirring is not a useful readiness test. You are aiming for distinct grains rather than a uniform mixture. Have your serving dishes ready before taking the hot roasting tray out.

Taste the dressing on the grain

Combine the remaining tablespoon of oil with the vinegar, mustard and two tablespoons of water. Try it on a little cooked buckwheat rather than tasting only from a spoon: its effect changes when distributed through food. Add another splash of water if it seems excessively sharp, then decide whether it needs the optional sweetness.

Account for salt already added to the vegetables and grain. If serving salty cheese, leave the final adjustment until that is included. Mustards vary in strength, so two teaspoons are a starting quantity rather than an instruction to add everything regardless of taste.

Assemble just before eating

Divide the buckwheat between bowls and add the beetroot and onion on top. Spoon over some dressing and finish with chopped herbs. Serve the remaining dressing separately so everyone can adjust the sharpness without soaking the entire batch of grain.

For a large shared bowl, fold the components together gently just before serving. Beetroot will colour the surrounding ingredients; this is expected. If you want the colours to remain distinct, leave the vegetables on top and mix each portion at the table.

Variations and leftovers

With ready-cooked beetroot, prepare the grain and onion first and warm the beetroot pieces near serving time. For two portions, halve the ingredients. Do not automatically halve the roasting time: tenderness, rather than the number of diners, determines when the vegetables are ready.

Cool leftovers quickly in small portions and refrigerate within two hours of preparation. FSA recommends eating chilled leftovers within 48 hours or freezing them. Keep the dressing separately for convenience. When reheating, heat the food thoroughly throughout; do not leave a large serving bowl on the table until the following morning.