Place the butter in a large bowl and soften it with the back of a spoon. Cream the butter, egg yolks and sugar, then blend in the cocoa, the vanilla extract, the liqueur, the biscotti and the almonds. Working quickly to avoid melting the butter, turn the mixture out and form it into the shape of a sausage. Wrap it tightly in plastic wrap and let it set in the freezer for 4 hours. Serve slightly thawed, sliced like a salami.
Consumption of raw or undercooked eggs, shellfish and meat may increase the risk of foodborne illness.
Recipe copyright 2000, Mario Batali. All Rights Reserved.