| 1 | | Jar roasted macadamia nuts; (7-ounce) |
| 3/4 | c | Ground vanilla wafer cookies |
| 1/4 | c | Firmly packed dark brown sugar |
| 1/4 | c | Unsalted butter; melted (1/2 stick) |
| | FILLING |
| 2 | c | Fresh pink grapefruit juice |
| 1/4 | c | Plus 1 tablespoon sugar |
| 1 1/4 | ts | Unflavored gelatin |
| 1/4 | c | Fresh lime juice |
| 9 | oz | Imported white chocolate; (such as Lindt or |
| | ; Callebaut), chopped |
| 1/4 | c | Whipping cream |
| 1 1/4 | c | Chilled whipping cream |
| | TOPPING |
| 1 | c | Chilled whipping cream |
| 2 | tb | Sugar |
| 7 | | Thin lime slices; cut in half |
| 8 | oz | Imported white chocolate; (such as Callebaut), |
| | ; shaved into curls |
| | ; (optional) |
