I used this recipe for week 26 of my food blog, "Travel by Stove." I am attempting to cook on meal from every nation on Earth, and Belgium is my 26th stop. I never use any recipe for my blog that I'm not reasonably sure is from authentic or traditional sources, and this recipe has been posted without any alternations or additions to the ingredients. Please beware: I didn't like this recipe because I find Brussels sprouts bitter enough without the addition of dark beer. You need to be a fan of that bitter flavor to appreciate this dish. If you don't think you are, please don't make this.