15g/½oz fresh basil
1 whole garlic bulb, halved horizontally
2 onions, cut into wedges
300g/10½oz floury potatoes, such as Maris Piper, peeled and cut into small even-sized pieces
1kg/2lb 4oz ripe vine tomatoes, halved
sea salt and freshly ground black pepper
2 tsp caster sugar
olive oil
½ tsp sweet smoked paprika
1 litre/1¾oz pint vegetable stock
150ml/¼ pint single cream, plus extra for serving