Yesterday, I went for my covid jab then came home and decided to make tomato chutney. I put all the ingredients into my favourite saucepan and waited for it to come to the boil, then turned it down and sat down for 5 minutes. I fell asleep! Woke up to the smell of burning chutney 
So far I've tried soda crystals and boiling water, then washing up liquid. Alt other suggestions, I really don't want to lose this pan 🙏🏻