Old fashioned lemon chess pie(eastern north carolina recipe)

1 1/2 cups sugar
 2 tsp corn meal or flour
 juice of two large lemons or three small lemons
 4 eggs
 2 tbsp. butter, melted
 
 Mix flour and sugar, then add lemon juice and melted butter.  Beat in 
 eggs one at a time.  Pour into a crust and bake at 300 degrees for about 
 one hour, or until the mixture begins to set and turns golden brown.  Add 
 more lemon juice if you like the taste.