Why don't you eat a teaspoon of it to satisfy your craving, then give the jar to someone to hide from you!! If you live on your own go and put it somewhere really inconvenient, then concentrate on something else like a household chore or something you've been putting off for ages like tidying a cupboard or writing an email or letter (or just playing on Minimins for a bit) and in no time at all the stew will be ready and you'll be nice and full and won't want any more of the Nutella!!!X