Also, the smoked salmon butter is nice but a luxury that you can skip without altering the taste of the soup too much. (epicurious.com)
You think it would work without altering the tasted too much? (plantepusherne.dk)
The sodium is high for me so I might opt for low sodium and a half amount of liquid smoke and hope it doesn't alter the taste too much.. (connoisseurusveg.com)