2 cups celery, diced into 1 inch pieces
water
1 teaspoon salt + 1/2 teaspoon salt
1 cup diced cooked chicken
3 tablespoons pimento, diced
2 tablespoons butter + 1 tablespoon butter
2 tablespoons flour
1/4 cup milk
1/2 cup heavy cream
1/2 cup celery water (reserved when celery is drained after cooking)
1/8 teaspoon pepper
1/2 cup fine dry plain bread crumbs
Put diced celery in a saucepan. cover with water and add 1 teaspoon salt. Bring to a boil using high heat, then reduce heat and simmer until the celery is tender (about 10-15 minutes). Drain and reserve 1/2 cup of the celery water.
In the meantime, preheat oven to 425° F. In a skillet, using medium heat, melt 2 tablespoons butter; then stir in the flour. Gradually, add the milk, cream, and celery water while stirring constantly. Continue stirring until the white sauce thickens. Stir in 1/2 teaspoon salt and the pepper. Add the cooked celery and diced chicken. and stir to combine. Put in a 1-quart baking dish. Sprinkle with the bread crumbs and using 1 tablespoon of butter, dot with small pieces of butter. Put in oven and bake until hot and bubbly, and the bread crumbs are lightly browned.
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