Creamy Lima Bean Gratin

• 4 tablespoons unsalted butter, 2 tablespoons melted
• 2 large leeks, white and tender green parts, thinly sliced crosswise
• 3/4 pound shiitake or cremini mushrooms, stems discarded and caps thinly sliced
• 3 cups chicken stock or low-sodium broth
• 3 cups heavy cream
• 2 bay leaves
• 1 tablespoon finely chopped tarragon
• Salt and freshly ground pepper
• Four 10-ounce boxes of frozen baby lima beans
• 1/2 cup fine, dry bread crumbs
• 1/4 cup freshly grated Parmesan cheese

1. Preheat the oven to 400.
2. In a large skillet, melt 2 tablespoons of the butter.
3. Add the sliced leeks and cook over low heat, stirring, until they are softened, about 3 minutes.
4. Add the mushrooms, cover and cook over low heat, stirring occasionally, until they are tender, 15 minutes.
5. Add the stock, cream, bay leaves and tarragon and bring to a boil.
6. Season with salt and pepper and remove from the heat.
7. Put the frozen lima beans in the bottom of a 12- to 14-cup glass or ceramic baking dish.
8. Pour the hot cream mixture over the limas.
9. Bake for 1 1/4 hours, or until the cream sauce is thickened.
10. Preheat the broiler.
11. In a small bowl, toss the bread crumbs with the Parmesan and melted butter.
12. Sprinkle the crumbs over the lima beans and broil for about 1 minute, rotating the dish for even browning.
13. Let the gratin stand for 15 minutes before serving.

unsalted butter, leeks, shiitake, chicken stock, heavy cream, bay leaves, tarragon, salt, beans, bread crumbs, freshly grated parmesan cheese

Taken from www.foodandwine.com/recipes/creamy-lima-bean-gratin (may not work)