Got this from a November 2005 Washington Post story.
4 or 5 Tbsp superfine sugar (Grind granulated sugar with a mortar and pestle?)
1 1/3 cup milk
2 cups to 3.2 cups flour (Err on the side of less, I think)
2 tsp baking soda
3 tsp cream of tartar
Add dry ingredients and mix, using rest of milk as required (Err on the side of less milk)
Fold in the melted butter.