How to Make It
Preheat grill to low (250°F to 300°F) or prepare a charcoal grill for indirect heat. Halve each doughnut to create 2 rounds. Place doughnuts, cut side down, on lightly oiled grates. Grill, uncovered, until toasted and light grill marks appear, about 3 minutes.
Place about ½ cup ice cream on each of 4 doughnut halves, and spread ice cream to edges. Sandwich with remaining 4 doughnut halves.