• 40 g (1½ oz) butter
• 40 g (1½

Melt the butter in a heavy saucepan, stir in the flour, and cook for a minute or two before gradually adding the milk and stock, stirring continuously to ensure a smooth sauce. Cook for 10 minutes, and remove from the heat. After 10 to 15 minutes, stir into the yoghurt or fromage frais and seasoning.

Slice the aubergine and quarter the peppers, remove the seeds, brush with oil, and gril