If you didn’t put your sprouts on the boil back in April so that they would be ready for Christmas day all may not be lost in achieving that classic mushiness we all know and love (before you say it Blackdogg, I know you don’t like sprouts!)
Simply microwave on full for 15 hours (for an 800W oven) and finish off with 3 hours traditional boiling on Christmas morning to get the best results.