¾ teaspoon vanilla extract or vanilla bean paste, divided
⅛ teaspoon kosher salt, divided
1 cup heavy cream
2 tablespoons confectioners' sugar
Directions
In a medium bowl, whisk to combine the hot coffee or espresso, sugar, Kahlua or coffee liqueur, ¼ teaspoon vanilla extract or paste, and half the salt until the sugar is dissolved.
Pour the coffee into a 9x13-inch pan and freeze, uncovered, for 1 hour.
Remove from the freezer, and use a fork to scrape the mixture until evenly mixed.
Freeze for another 30-45 minutes and scrape again.
Repeat the freezing and scraping once more, or until the granita is completely frozen and fluffy. Cover and freeze until ready to use.
To prepare the topping, whip the cream, confectioners' sugar, remaining vanilla and salt, and optional crème fraîche to medium peaks.
Portion the granita into glasses.
Top each with a dollop of whipped cream and a dusting of cocoa, if desired, before serving.