That's indeed a challenge. Since it's made without potatoes (and the starch they add), this chowder is not thick - it has the consistency of a rich soup. It's excellent - creamy and flavorful - but it's not thick. If you'd like to thicken it, you can use any keto thickener that you like. One example is glucomannan powder - try mixing 1/2 teaspoon in a tablespoon of cold water and stirring that into the finished soup. However, keep in mind that authentic chowders are not necessarily thick.