Beetroot, walnut and feta dip

1 Heat the oven to 190°C/fan 170°C/gas 5 and line 2 baking trays with baking paper. Tightly wrap each beetroot in foil, adding 1tsp water to each parcel, then put in one of the prepared baking trays and roast for 1 hour or until tender when tested with a sharp knife.

2 Scatter the walnuts over the base of the other prepared tray and lightly toast in the oven for the last 5 min of the beetroot cooking time.

3 Unwrap the beetroot and discard the foil, then set aside until cool enough to handle. Rub off the skin (see cook’s tip, left), then roughly chop the beetroot and put in a food processor with the roasted walnuts, feta and yoghurt. Blend until smooth.