Step 1
Heat water lemon wedges and white sugar in a large saucepan over medium heat. Simmer until sugar is dissolved mashing lemons often to release juice and oils.
Step 2
Cook and stir lemon mixture for 5 minutes more then remove from heat and allow to cool slightly. Strain lemon pieces from saucepan.
Step 3
Sprinkle gelatin into saucepan.
Step 4
Heat syrup and gelatin mixture over low heat until gelatin dissolves 5 to 10 minutes.
Step 5
Remove from heat and allow to cool for 15 minutes. Pour lemon vodka into gelatin mixture and stir well.
Step 6
Pour mixture into a 9x13-inch baking pan; refrigerate until set at least 6 hours.
Step 7
Run a sharp knife under hot water; cut gelatin into cubes with knife and sprinkle cubes with turbinado sugar before serving.