If you cannot find fresh lemon verbena you could substitute fresh lemon balm or lemon thyme for the lemon verbena. (I would not suggest using dried lemon verbena. It doesn't have the same bright, fresh flavor.)
'granitas' on Serious Eats
Brought to you by Häagen-Dazs® brand ice cream. Visit facebook.com/HaagenDazsUS to learn more about tastes and experiences that are made like no other®. Like many granitas, this isn't so much a recipe as a guideline. Herbs and chiles vary...
This granita is a cross between a cocktail, a dessert, and a palate-cleanser. Unusual and potent in flavor, it adds a touch of the exotic to the daily dessert grind.
This recipe provides a new way to dress up this old kosher standby, by freezing it into sweet, alcoholic, garnet-colored snowflakes. This recipe has one ingredient, and one step. And it has wow-factor and whimsy. L'chaim!