Serves 4
1 Tbs tomato puree
1/2 tsp sugar
2 very ripe tomatoes, cut into 0.5cm dice (320g in total)
150g couscous
220ml boiling chicken or vegetable stock
40g unsalted butter
Salt and black pepper
3 Tbs olive oil
1 medium onion, finely chopped (160g in total)
1 Pour two tablespoons of the olive oil into a non-stick pan, about 22cm in diameter, and put on a medium heat. Add the onion and cook for five minutes, stirring often, until it has softened but not coloured.
2 Stir in the tomato puree and sugar and cook for a minute. Add the tomatoes, a teaspoon of salt and some black pepper and cook for three minutes.
3 Meanwhile, put the couscous in a shallow bowl, pour over the boiling stock and cover with cling film. Set aside for 10 minutes, then fluff up the couscous with a fork. Add the tomato sauce and stir.