Chocolate Mousse

Chocolate Mousse
10 ounces semisweet chocolate
1 1/2 ounces butter
5 egg whites
5 egg yolks
8 ounces heavy cream, whipped
1 ounce water
2 ounces sugar

Prepare a double boiler. First, melt the chocolate and butter over the water. Set aside. In a separate bowl, combine egg yolks, 1 ounce sugar, and 1 ounce of water. Whisk together over the hot water for 5 minutes. Remove from the heat and continue whisking until cool. In another bowl, combine the egg whites with the remaining sugar. Whisk over hot water for 5 minutes, until the egg whites are fluffy. Remove from head and continue whisking until cool. Fold the egg whites into the yolk mixture. Then, fold in the butter chocolate mixture. Finally, fold in the whipped cream. Put into fridge to cool for at least 15 minutes.The mousse will fluff up a bit after cooling. At that point, pipe it into the prepared chocolate cups.