I would like to cook a pot of seafood chowder today but it's Christmas, the stores are all closed and I forgot to pick up horseradish. Is there a good substitute for horseradish in a creamy chowder?
I figured wasabi and mustard might work and those ingredients do turn up in a Google search but I'm not sure that they would work in a chowder. The flavor would be fine, I think, but I'm worried that the final product would be tinted green or yellow depending on the substitution. I could see wasabi and especially mustard working well to replace horseradish in something like crab dip though.
Any other ideas?