Preheat the oven to 400F or 200C.
Wash Brussels sprouts, dry them, cut off the bottom stem, and discard any outer or brown leaves then slice in half. If you’re Brussels sprouts are on the larger side, slice them into quarters, so they cook more quickly and evenly.
Add them to a baking sheet, and toss with a little olive oil, salt, and pepper.
Bake for 15-20 minutes, using a spoon to move and flip them around halfway. Smaller ones will cook more quickly than larger ones. They should just be starting to brown on the edges and get golden and crisp.
Meanwhile, make the dressing. In a small bowl whisk together all dressing ingredients.
When Brussels are done, spoon 2 tablespoons of the dressing on top and reserve the rest for another use. Toss well and serve.