Very cool, very fresh tasting, lovely sharp lemon flavour.
1/3 cup lemon zest
1 cup fresh squeezed lemon juice
1.5 cups sugar
1.5 cups water
In a sauce pan, mix water, sugar and lemon zest. Bring to a gentle boil for two minutes. The water and sugar should turn to syrup (simple syrup) and take on a nice yellow colour from the lemon zest, as well as a nice sweet lemon flavour.
Remove from heat and strain into a small metal bowl and chill in an ice-water bath, or refrigerate. Add the lemon juice and stir in.
Freeze either in an ice cream maker, or in a small container in the freezer. If using a freezer/container combination, let freeze mostly solid, then stir to a slush with a fork and refreeze.
The flavour is slightly sharp and sour, but still fairly sweet. I added another tablespoon of lemon juice right at the end of the 30 minutes in the ice cream maker, which made it much sharper, rather like a frozen lemonade. Very very good.