6 leeks
3 medium potatoes
1/2 teaspoon salt + 1/2 teaspoon salt + 1/4 teaspoon salt
1 tablespoon butter
1 tablespoon flour
1/8 teaspoon pepper
1/2 cup milk
1/4 cup grated cheese (I used cheddar.)
1/3 cup fine bread crumbs (I grated a slice of bread to get the bread crumbs.)
Preheat oven to 350° F. Clean and trim the leeks. Slice the white and light green parts of the leeks into 1/2-inch pieces. Place in a saucepan and cover with water; add 1/2 teaspoon salt. Using high heat bring to a boil, then reduce heat and cook until the leeks are tender (about 10 minutes). Remove from heat and drain.
Peel and then slice the potatoes into 1/4-inch slices. (If the slices are large, cut each slice in half.) Place in another saucepan, and cover with water; add 1/2 teaspoon salt. Using high heat bring to a boil, then reduce heat and cook until the sliced potatoes are tender (about 10 minutes). Remove from heat and drain.
In the meantime, in another pan, using medium heat, melt butter, then stir in the flour, 1/4 teaspoon salt, and pepper. Gradually, add the milk while stirring constantly. Continue stirring until the white sauce begins to thicken.
Put 1/2 of the cooked potatoes in a baking dish. (I used a 1-quart baking dish.). Add 1/2 of the cooked leeks. Spread 1/2 of the white sauce over the vegetables in the dish. Add the remainder of the potatoes, and then the remainder of the leeks. Spread the rest of the white sauce over the vegetables in the dish. Sprinkle the grated cheese, and then the bread crumbs, on top. Bake for 15 minutes or until hot and the bread crumbs are lightly browned.
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