Brussels Sprouts Jazzed Up

Brussels sprouts have an undeserved bad reputation, and indeed I used to hate them years ago when they were big and bitter. But now they seem to be bred to be sweeter, and anyway are harvested smaller and younger, so are delicious just halved, boiled briefly and tossed in a little butter. As they are traditional at Christmas, I usually serve them either in the jazzed-up manner below, or jazzed up another way: briefly boiled, then roughly chopped in a processor (while still hot to release th