Irish Chocolate Ice Cream

4 beaten egg yolks
3/4 cup sugar
3/4 cup milk
3/4 cup half-and-half or light cream
3 ounces semisweet chocolate, coarsely chopped
2 tablespoons instant coffee crystals
1/4 cup Irish whiskey or bourbon whiskey
2 cups whipping cream

Directions
In a heavy medium saucepan combine the egg yolks, sugar, milk, half-and-half or light cream, chocolate, and coffee crystals. Cook and stir over medium heat until the mixture is slightly thickened and bubbly; remove from heat. Beat mixture with a rotary beater until smooth. Transfer to a medium bowl. Cool thoroughly by placing bowl in a sink or large bowl of ice water; stir occasionally. Stir in whiskey.

In a large mixing bowl beat whipping cream with an electric mixer on medium speed until soft peaks form (tips curl). Fold in cooled chocolate mixture. Pour into an 8x8x2-inch baking pan. Cover and freeze at least 8 hours or overnight until firm. Let stand at room temperature for 10 to 15 minutes before serving. Makes about 12 servings (1-1/2 quarts).

Source: www.bhg.com/recipe/desserts/irish-chocolate-ice-cream/