Whisk sour cream and egg together. Add jalapeño, salt, cheese and sugar. Stir well. Add cornmeal. Stir and add enough buttermilk or half and half until the cornmeal is moistened. The batter should be the consistency of thick oatmeal.

Heat an iron skillet and add one inch of cooking oil. Drop the batter by tablespoonfuls into the hot grease and flatten down with the back of a spoon. Work in batches and don't crowd them in the pan. Turn after 3 or 4 minutes or when brown. Remove from pan after both sides are brown and drain on paper towel. Sprinkle with salt while still warm.