Method:
STEP 1
To make the tomato sauce, heat the olive oil in a saucepan. Add the onions, garlic and carrot. Cook for 5-7 mins over a medium heat until softened. Turn up the heat a little and stir in the tomato purée. Cook for 1 min, pour in the white wine, then cook for 5 mins until this has reduced by two-thirds. Pour over the chopped tomatoes and add the basil leaves. Bring to the boil then simmer for 20 mins. Leave to cool then whizz in a food processor. Will keep, cooled, in the fridge for up to three days or frozen for three months.
STEP 2
To make the white sauce, melt the butter in a saucepan, stir in the plain flour, then cook for 2 mins. Slowly whisk in the milk, then bring to the boil, stirring. Turn down the heat, then cook until the sauce starts to thicken and coats the back of a wooden spoon. Will keep, cooled, in the fridge for up to three days or frozen for three months.
STEP 3
Heat the oven to 200C/180C fan/gas 6. Lightly oil two large baking trays and add the peppers and aubergines. Toss with the olive oil, season well, then roast for 25 mins until lightly browned.