I would've said something but so as to not come across as overstepping say something like,
"Wow my kids never like chicken livers at that age."
"What in the world do you cook with chicken livers."
"My you must have behaved so well in the store to get chicken livers for a treat."
"Oh yummy, can I try one?"

If by that point the mother hasn't noticed it...
"Wow my kids never like chicken livers at that age."
"What in the world do you cook with chicken livers."
"My you must have behaved so well in the store to get chicken livers for a treat."
"Oh yummy, can I try one?"

If by that point the mother hasn't noticed it...







