- Preheat the grill, setting the burners to high. Oil the grate.
Spiced Rum Syrup
- In a pot, bring the water and sugar to a boil until the sugar has dissolved. Remove from the heat. Add the remaining ingredients and let infuse for 10 minutes. Strain through a sieve set over a large shallow bowl. Set the syrup aside.
Pineapple and Doughnuts
- Grill the pineapple wedges on all sides for 5 minutes or until golden. Place the pineapple in the spiced syrup. Grill the doughnuts for 1 minute on each side. Transfer to a plate.
- Drain the pineapple and place 2 pieces on each plate, side by side. Top with a doughnut half, a scoop of ice cream and pistachios. Drizzle with more spiced syrup, if desired.