烤面配方：
1/2 pound elbow macaroni (1/2磅拐弯的意大利通心粉)
3 tablespoons butter (3 大勺黄油)
2 tablespoons regular flour (2大勺中筋面粉)
1 tablespoon powdered mustard (一大勺少芥末粉)\
1/2 of baked butternut squash puree(半个烤熟的南瓜打成酱)(如果不喜欢南瓜的甜味，换成两杯牛奶，另外面粉也要多加一大勺)
1 cup of milk(1杯牛奶)
1/2 cup yellow onion， finely diced(1/2杯切细的黄洋葱)
1 bay leaf (一片香叶)
1/2 teaspoon paprika (半小勺甜辣椒粉)
1 large egg (一个大鸡蛋)
12 ounces sharp cheddar， shredded (12盎司自己擦好的味道最烈的车打芝士丝)
1 teaspoon kosher salt (1 小勺粗盐)
Fresh black pepper (现磨黑胡椒粉适量)
For topping(铺在表面一起烤的东西：
3 tablespoons butter (三大勺融化的黄油)
1 cup panko bread crumbs (1 杯日本面包粉)
