Staff at the Gravity, Hinckley, created the feast, which consists of two kilograms of turkey, eight pigs in blankets, 11 Yorkshire puddings, over a kilogram of roast potatoes and vegetables and a jug of gravy.
Fat and salt
The meal, which contains more than 15 times the recommended daily amount of fat and salt, costs £35, but diners who manage to complete the meal eat for free.
Proceeds from the challenge will all be donated to charity.
Becki List, manager of the pub, told the Daily Express the idea came from a previous burger challenge the pub put on, which not a single customer could complete, adding that she did not expect any one to be able to finish the Christmas challenge either.
Five staff had attempted and failed as well as a number of customers, she reported.
Eating challenges in pubs have proved a lucrative endeavour for many operators. Earlier this year, Lancashire pub the Farmers Arms, Burscough, doubled its trade by creating a 10,000 calorie burger challenge.
Spirit Pub Company brand Flaming Grill, which already offers diners the “Trash Can Challenge” – a rack of ribs, mixed grill burger, barbecue pulled pork nacho sundae, onion rings, fried chicken skewer, corn on the cob and baked beans served in a dustbin lid – also recently asked customers to design their own eating challenges for a competition, with the winner to feature on Flaming Grill menus throughout 2016.