Fish House Punch

Directions

1. 1.

   To make ice block, fill carton with water and freeze until solid, about 8 hours (see cooks' note, below).

2. 2.

   Stir together sugar and 31/2 cups water in a large bowl or pot until sugar is dissolved. Add lemon juice, rum, Cognac, and brandy and chill, covered, at least 3 hours.

3. 3.

   Put ice block in a punch bowl and pour punch over it.