Notes: This smooth, light and fluffy potato purée makes a delightful alternative to plain mashed potatoes. Prepare beforehand and freeze.
Ingredients （成分）:
· 4 lbs large potatoes 4磅大土豆 · 1/4pint milk (warmed) 4品脱温牛奶 · 2 oz butter 2盎司黄油 · 1 large egg 1个大鸡蛋 · Salt and pepper 盐和胡椒粉 · Parsley sprigs and lemon slices, for garnish 作装饰用的欧琴蔓和柠檬片
To prepare （准备）:
· Peel potatoes, cut into large chunks, boil in salted water until tender. Drain and mash until smooth. 将土豆削皮，切成大块，放入盐水中煮至变软，取出滤干后捣成泥；
· Beat in the warm milk, most of the butter and the egg yolk. Season to taste. 加入温牛奶、大部分黄油和蛋黄并调味；
· Lightly whisk the egg white until it just holds its shape. Fold into the potato mixture. 轻轻搅动蛋清，拌入土豆混合物中；
· Spoon the mixture into a greased 5-pint shallow ovenproof dish. Dot the top with the remaining butter and sprinkle with ground black pepper. 用勺子将调好的混合物放入5品脱的耐热浅盘中，将剩下的黄油点在顶部，并撒上黑胡椒；
· Place on lower shelf of oven and bake at 400ºF (200ºC) for about 45 minutes or until browned. Garnish. 将浅盘放在烤箱的下一层架子上，然后在200ºC的温度下烤约45分钟即可。
