Preparation Bring amaretto and preserves to boil in saucepan. Reduce heat to medium; boil gently until mixture is reduced to 3 tablespoons, stirring often, 3 to 4 minutes. Remove from heat. Add cherries; let soak at room temperature at least 3 hours. DO AHEAD: Can be made 1 day ahead. Cover; chill. Bring 2/3 cup cream, honey, and espresso powder to simmer in another small saucepan over medium heat. Remove from heat. Add chocolate and butter; whisk until smooth. DO AHEAD: Fudge sauce can be made 1 day ahead. Cover and chill. Rewarm just until pourable before using. Spoon 1 tablespoon fudge sauce into each of 6 dessert glasses. Add 1 scoop pistachio gelato and 1 scoop vanilla gelato to each glass. Drizzle 1 tablespoon fudge sauce over gelato on each. Top with whipped cream, cherry mixture, and pistachios.
Preparation Bring amaretto and preserves to boil in saucepan. Reduce heat to medium; boil gently until mixture is reduced to 3 tablespoons, stirring often, 3 to 4 minutes. Remove from heat. Add cherries; let soak at room temperature at least 3 hours. DO AHEAD: Can be made 1 day ahead. Cover; chill. Bring 2/3 cup cream, honey, and espresso powder to simmer in another small saucepan over medium heat. Remove from heat. Add chocolate and butter; whisk until smooth. DO AHEAD: Fudge sauce can be made 1 day ahead. Cover and chill. Rewarm just until pourable before using. Spoon 1 tablespoon fudge sauce into each of 6 dessert glasses. Add 1 scoop pistachio gelato and 1 scoop vanilla gelato to each glass. Drizzle 1 tablespoon fudge sauce over gelato on each. Top with whipped cream, cherry mixture, and pistachios.