Persimmon Old Fashioned Cocktail

For the persimmon purée:
Place the persimmons on a grill heated to medium high and cook for three to four minutes on each side. Place the grilled quarters in a blender and purée on high until smooth. Strain the mixture through a fine mesh sieve and discard remnants of peel. Put into a container, let cool to room temperature, and cover. In a tightly covered container, the purée will keep for two days in the refrigerator.

For the Old Fashioned:
Combine the persimmon purée, bourbon, maple syrup, and bitters in a cocktail shaker filled with ice. Shake well. Strain through a fine mesh strainer into an Old Fashioned glass with cubed ice. Garnish with cherry and orange twist.