Barbara'S Lemon Pie

Directions

1. 1
   Heat oven to 400°.
2. 2
   Mix sugar and cornstarch in a 1 1/2-quart saucepan; stir in water gradually.
3. 3
   Cook over medium heat, stirring constantly until mixture thickens and boils.
4. 4
   Boil for 1 minute while continuing to stir; this is very important to boil for entire minute.
5. 5
   Stir at least half of the hot mixture into the egg yolks very gradually.
6. 6
   Add to the remainder of the hot mixture in the saucepan.
7. 7
   Boil and stir for 1 minute; remove from heat. Stir in margarine, lemon peel, lemon juice and food coloring, if you're using it.
8. 8
   Pour into a baked pie shell.
9. 9
   Top with meringue.