This is the 6077th most frequent Portuguese word.
carinhosamente
"Affectionately"
Here, 'carinhosamente' is used to describe how the subject took care of the plants, denoting a manner filled with care and affection.
Ela cuidou das plantas carinhosamente.
She tended to the plants lovingly.
In this sentence, 'carinhosamente' is utilized to convey endearment or affection in the act of giving a nickname.
Ele apelidou o cachorro carinhosamente de "Bob".
He lovingly nicknamed the dog 'Bob'.
In this context, 'carinhosamente' conveys the warmth and affection the grandmother put into the preparation of the cakes.