1/2 cup semisweet chocolate, broken into small pieces
3/4 cup sweetened condensed milk
1/2 teaspoon vanilla extract
1 1/4 cups whipping or heavy cream

Dissolve chocolate in sweetened condensed milk in a bowl over a pan of hot water, stirring occasionally. This takes about 10 minutes. Remove from heat and gradually stir in vanilla extract and 4 tablespoons water. Let sit until completely cold.

Pour the cream into a bowl and whip until soft peaks form, then fold into the chocolate mixture. Pour the mixture into a container. Cover and freeze until firm.

About 20 minutes before serving, transfer the ice cream to the refrigerator.

Serves 6.