1 1/2 cups uncooked long grain white rice
3 cups water
5 cups diced cooked chicken
1/2 cup mayonnaise
1/2 cup plain yogurt
1 (10.75 ounce) can condensed cream of mushroom soup
2 cups chicken broth
2 tablespoons lemon juice
3 tablespoons chopped onion
1 (8 ounce) can water chestnuts
1 1/2 cups sliced almonds
1 cup chopped celery
2 teaspoons ground white pepper
1 tablespoon salt
3 cups cornflakes cereal
1 cup butter, melted