Time flies when you’re having fun, which explains why this fourth series has zoomed by.

In tonight’s finale, the contestants roll up their sleeves to see who can make the most exotic sandwich.

Mel Giedroyc’s offering features Turkish delight, Twix, marshmallows, Nutella, M&M’s and Double Deckers.

But what she and the other competitors don’t know is that there’s a fiendish twist in store…