Roasting Vegetables

Roasting is the single technique most likely to convert a vegetable sceptic into an enthusiast. High oven heat drives off moisture and triggers Maillard browning reactions, producing sweet, caramelised edges and concentrated, deep flavour that steaming and boiling simply cannot achieve. Almost every vegetable improves dramatically with roasting.

Step-by-Step: Roasting Vegetables

1. Preheat the oven to 200 - 220°C (fan) or 220 - 240°C (conventional) - the higher the heat, the better the caramelisation.
2. Cut vegetables into uniformly sized pieces so they cook evenly. Aim for 2 - 3cm chunks as a general rule.
3. Toss generously with oil (2 - 3 tablespoons per tray), seasoning and any dried spices. Every surface should be lightly coated.
4. Spread in a single layer on a large roasting tray - if vegetables overlap, they steam rather than roast. Use two trays if needed.
5. Roast without moving for the first 15 - 20 minutes, then turn and continue until deep golden and tender - typically 25 - 40 minutes depending on density.

Chef's Tips

• Overcrowding is the most common mistake - err on the side of too much tray space rather than too little.
• Add fresh herbs and acids (lemon juice, vinegar) only after roasting - heat destroys both.
• For maximum caramelisation, start with a hot tray - put it in the oven as it preheats, then add the oiled vegetables to the hot surface.

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