Frost and Brussels Sprouts

"They" say that Brussels Sprouts get sweeter when they are kissed by frost. I've never believed them, since our Brussels sprouts start out very sweet. Well, I'll be the first to admit that they are right!! The Brussels are the only thing still growing in the garden, (oh, and a few heads of lettuce) so after the 23-degree weather of the other night, I hoofed it out to the garden and cut off a stalk of these mini-cabbages. I cooked them up (ok, I overcooked them from lack of attention), and drowned them in butter and salt. Oh boy, were they sweet!! They literally melted in my mouth. Even the kids asked for seconds and thirds. We even ate them as leftovers the next day, and Jason asked for more. I wonder if they'll last until Thanksgiving?