Aibu about taking home leftovers?

[WhyamIBoredathome]

Ok, so as not to influence I won't say who I am.
Family member A invites member B and their family over for lunch.
Both families are made up of two adults and two children.
Person A does all the shopping and cooking for main course and nibbles.
Person B offers to bring dessert and spends time and effort making a Nigella cake recipe to bring.
Both families have a nice time and enjoy all the food. About a quarter of the cake is leftover.
On leaving Person B picks up the leftover cake to take it home. Person A's husband expresses surprise that they aren't leaving it behind. Person B takes cake as they cooked it so felt this is fair.

Who is being unreasonable?

Is person B right to take cake as they put time and effort into baking?
Or is person A right expecting cake to be left as they bought and cooked main course (everything got eaten) and hosted.

I think it depends on family dynamic but I would say B has no social graces. You do not take a present then take it home again - unless the offer is made to take it home again

Person A

Sorry person b is unreasonable

You made that cake, didn’t you?

Half and half, leave half the cake and take the higher half.

Person B has no manners.

Person B is so unbelievably unreasonable. And odd.

Person B is déclassé

B is unreasonable.

Person B should have asked before taking it. Person A's husband should probably have been gracious and said nothing, but the error lies with Person B.

The dinner the cake was for us over do the leftovers are fair game. Most people I know would split it though.

I can’t believe they took the cake home with them! So rude. B is of course unreasonable

B has no social graces, but if person a had a nice time they should just laugh about it.

Person B should of left the cake.

Person B is in the wrong. It's like taking a bottle of wine and trying to take the left overs home.

Saying that though I'm always person A and I always send people home with extras for their lunch etc the day.

You have cake leftovers? You need to change recipe

I agree OP is person B, OP is written with a slight bias to person B.

Anything you take to another persons house should be left behind. Or split 50/50. Unless the host is insistent you take it away with you (which I have done before when on a diet and didn’t want the temptation of half a cake lying around)

Person B is being unreasonable. It’s about manners not cost spent. You don’t take home leftovers from food or drink that you brought. That’s ill-mannered

Person B

You're A aren't you? I also think person B was rude, and should have at least offered to split it.

Person B is BU. You leave the cake for the people hosting to enjoy.

Person B should have left the cake.

If B brought a bottle of wine and only half was drunk, would they have taken that back too?

Person B is rude.