100 % Homemade Lemon Meringue Pie

I haven't made one of these for years, so today I thought I'd treat my fianceé and I to a homemade Lemon Meringue Pie. I always have trouble with meringue, but today it seemed to turn out well.

I made a graham cracker crumb crust, click here for a recipe.
Then I made the filling from :
1 cup white sugar
3 tblsp flour
3 tblsp corn starch
1 and a half cups cold water
Mix all those in a pot and heat, stirring constantly
Have ready 2 egg yolks
the juice of 2 small lemons or 1 large lemon
1 tblsp of butter
Once your cornstarch and sugar mixture thickens, remove from the heat
and stir in the egg yolks
Add the lemon juice, continuing to stir
then finally, add the butter
Stir until the butter is completely melted
Spoon this mixture into the already baked pie shell
Now for the meringue:
Use 3 egg whites, room temperature is best
add 1/4 teaspoon of Cream of Tartar
Have 6 Tablespoons of white sugar ready
Also have 1/2 Teaspoon of vanilla extract on hand
Mix those egg whites with the Cream of Tartar with a high speed electric mixer
Keep it on high speed as you gradually add the sugar
Keep beating, adding sugar...then, when almost all your sugar is added,
pour in the vanilla extract
Keep beating until the mixture is shiny and white and thick.
Mine ended up looking like melted marshmallows...sort of.
Anyway, then I spooned the meringue onto the lemon filling without
letting the two get mixed together. I didn't spread the meringue until
it covered the whole top of the pie, and then it was more like just
giving it a bit of shape with a non-serrated knife.
Pop this in a 350 degree F oven for 8-10 minutes until the peaks are
lightly browned.