nine and 20 Chicken McNuggets both in store and for delivery. However, customers across the UK have less than a week to snap up the deals, with the offers only available until Tuesday 16th April.

But now that I've tasted McDonald's spicy chicken nuggets, I have a feeling my loyalties might shift — at least until these disappear again. And next time, I'm going for the 20-piece box.

McDonald's explains why their Chicken McNuggets come in four odd shapes. Produced by Noah Friedman. Original Reporting by Hayley Peterson. Follow BI Video: On Twitter More from Retail McDonald's ...

McDonald's Chicken McNuggets are one of the fast food juggernaut's core menu items. They're offered all over the world and are gobbled up by the millions. McDonald's has to make sure every piece ...