1 envelope unflavored gelatin
2 tablespoons cold water
1 cup sugar
4 egg yolks
1 cup scalded milk
1 teaspoon vanilla
1 cup chestnut puree
1 ounce melted semi-sweet chocolate
1 1/2 cups heavy cream
3 tablespoons dark rum or brandy
Dissolve gelatin in cold water. In an electric mixer, cream sugar and egg yolks. Slowly pour and whisk the boiling milk over egg mixture. Pour in saucepan. Stir with a wooden spoon over low heat until the mixture coats the back of the spoon, about 5 to 8 minutes. Do not allow to boil. Stir in the gelatin. Strain into a bowl. Cool mixture.
Mix in the vanilla, chestnut puree, and melted chocolate.Whip the heavy cream to a medium peak. Fold in the cool custard. Mix in the rum or brandy. Pour in a decorative mold. Refrigerate for 2 hours. Unmold and decorate with whipped cream flavored with rum and glazed chestnuts.