Sweet Potato Casserole

Casserole:
2 tablespoons cornstarch
1 cup milk, cold
1 40-ounce can drained yams
1/4 cup butter or margarine, softened
2 eggs, beaten
1 1/2 cups sugar
1 dash cinnamon

Topping:
1 cup corn flakes, crushed
1/2 cup brown sugar
3/4 cup butter
1 cup coconut

In a large mixing bowl, dissolve the cornstarch in the milk.
In a separate bowl, mash the yams with a fork.
Add the yams, butter, eggs, sugar, and cinnamon to the cornstarch and milk and mix well.
Pour into a 9x13 glass baking dish.
Bake 20 minutes at 400 degrees.
In the meantime, mix the topping ingredients over low heat until combined.
Set aside until casserole has completed the 20-minute bake time.
Then carefully spread/sprinkle the topping over the casserole and bake for another 15 minutes, or until the topping begins to brown slightly.