1Place the tofu, soy milk, hazelnut syrup, espresso powder, and vanilla extract into a blender. Cover, and puree until smooth. Pour in the melted chocolate, and puree until evenly incorporated. Pour the mixture into a bowl, cover, and refrigerate until cold, at least 1 hour.
2Pour the chilled mixture into an ice cream maker and freeze according to the manufacturer's directions. Once the ice cream has thickened and is hard to stir, remove it from the ice cream maker and transfer it to a freezer container. Allow the ice cream to harden 4 hours to overnight before serving.