I almost hesitate to tell you what kind of vinaigrette because half of the earth will immediately be like EW GROSS NO X OUT.
Because, folks, the utter magic of this dish comes from a heavy hand of fish sauce, which I’m perfectly aware freaks people out, even though I don’t pretend to understand why. I think most fear is really just fear of the unknown, though, so if you get to know fish sauce, you will love it and not be scared of it. Boom.
The fish sauce in this application alllmost acts like soy sauce, just a salty earthy umami flavor, not fishy at all, similar to Caesar dressing which gets its flavor from anchovy but doesn’t taste like fish either. The dressing here also features garlic, hot peppers, and lime juice, and the huge punch of flavor with the stinky-in-a-good-way Brussels is absolutely wonderful.
The Brussels sprouts, for their part, are cooked half in the skillet half in the oven, super quickly, to get some crispy edges + tender but not mushy insides. The sprouts get dark at the edges and bright green throughout, and tons of fresh herbs add to the brightness of the flavors.
My friend Emily introduced me to this dish, and I’ve made it three times in as many months, which is a lot for us because we cook a bunch of different things AND like Brussels lots of different ways. The last time I made these I actually had leftover dressing and sprouts so the next day I shredded the Brussels on my mandoline and tossed them raw with some of the leftover dressing, and they were GOBBLED up. I may have liked them more than the cooked version of the recipe, I honestly can’t tell.