POTATO AND ANCHOVY CASSEROLE

Steps:

• Preheat oven to 375. Butter 15x10x2 glass baking dish. Melt 3 tbls butter in heavy large pot over medium-high heat. Add onions; saute until tender; about 10 minutes. Add potatoes, saute until softened, about 7 minutes. Season with salt and pepper. Spread half of potatoe mixture in prepared dish. Arrange anchovies over. Top with remaining potato mixture, spreading evenly. Pour cream and all of reserved anchovy oil over. Dot with remaining 2 tbls butter. Sprinkle breadcrumbs over. Bake until potatoes are tender and beginning to brown around edges and top, about 1 hour. Let stand 15 minutes before serving.