Lemon Pie

1 1/2 cups sugar
3 Tablespoons flour
3 Tablespoons cornstarch
3 eggs
2 Tablespoons margarine
juice of 1 lemon
grated lemon peel

In a saucepan, combine sugar, flour, and cornstarch.
Gradually stir in 1 1/2 cups water.
Cook and stir until thick and bubbling.
Cook 2 minutes.
Remove from heat.
Separate eggs.
Set aside egg whites.
Gradually stir some of the hot mixture into the egg yolks.
Return mixture to pan and bring to a gentle boil.
Cook 2 minutes.
Remove from heat and stir in lemon juice and peel.
Top with meringue if desired.
Store in the fridge.