Mix flour and sugar.
Put 1 quart of whole milk in saucepan on stove to warm.
When hot, add sugar mixture, stirring constantly until it starts to thicken.
Add beaten eggs to hot milk mixture, tempering the egg mixture first to prevent cooking the beaten eggs.
Cook, stirring constantly until mixture thickens like a custard.
Remove from heat and cool completely.
Once cooled, add vanilla to taste - up to 1 Tablespoon.
Add to ice cream freezer insert.
Add pint of cream or whole milk to about an inch from the top.
Freeze per the instructions for your ice cream freezer.
Eat right away or freeze to get a firmer texture.