A marmite moment!

Mum and Dad were down today and Mum brought me a treat. My favourite, as only my Mum can make it (she hates it by the way!),and before I tell you what it is and you all go Yuch! Dont knock it until you try it!
Ladies and Gentlemen, I present you with .....tripe and onions in a white sauce with mashed potatoes!!!! Smashing :)