First, you need to get six of your closest friends, no more, no less. Then you need to find a punch bowl that can hold 2 1/2 liters of liquid. And you will need a pineapple. Well, I'd write more, but I gotta go!
Yale College Punch
Classic Pour Series
1 bottle VSOP cognac
20 ounces soda water
1 bottle of champagne
4 tablespoons of powdered sugar
In your punch bowl, steep the pineapple in a 750 ml bottle of VSOP cognac for two hours under refrigeration (We used Courvoisier). When you are ready to serve, add the soda water and powdered sugar. Stir until the sugar is dissolved. Add a bottle of chilled champagne of your choosing. Yale students demand that you use champagne goblets, but glasses that have bowls to them are nice, like punch glasses and snifters.