He's showing you how easy it is to make soda bread, I get interested as I like making soda bread. First thing he says in his very enthusiastic, excited delivery is, 'why walk to the shops to get your butter when you can make your own so much faster' - then goes on to make said butter with list of ingredients and hey voila, 5 mins later you have your own butter (only i know it would take me at least 30 mins). And as i always have butter in fridge, why would i bother?
AIBU to want to reach into the telly and slap him with smelly kipper.