Peas with Little Gem and spring onions

Melt the butter in a large frying pan and add the little gem lettuces and the spring onions. Cover and cook gently for 1 min, shaking the pan occasionally. Add the peas and coat with the butter. Pour in the stock, add the sugar and season. Cover and simmer for a further 3-4 mins until the peas are just tender. Remove the lid, increase the heat and boil for 1 min to reduce the cooking juices by half. Transfer to a serving dish, sprinkle with the chopped chives and serve straight away.