Some parenting advice: if your toddler loses their marbles, do not pacify them with a reward. That's a seriously bad idea.

I found the best low stress and low effort solution was to be a larger drama than they are. This culminated in myself lying on the floor in the Lakeside shopping centre in the UK screaming my head off. Oh yes I can do it too. And it makes you look like a dick when I do it. Make sure you talk to them at the same level afterwards. You are now equals :)

She never did it again after that and has been a joy. Advice has worked for other people.