surprised she said 'for akari-chan' even if it's practice for yui lol
Dont lie to yo friends. just tell her she sucks!
Either that or say an allergy but i guess they are at that age where concrit, even if it's helpful in the end would be taken as like a personal attack
(altho i assumed most JP schools would have cooking classes to where a teacher would be able to help and maybe be more strict without caring about feelings)
altho you'd think she'd try some herself first unless it's some comedy rule of "it doesn't taste bad to me b/c i made them" lol (altho with the reverse logic, it'd be sucky if someone decent at cooking isn't able to enjoy their own stuff)