YOU SAID:
I want to bake cookies for my mom.
INTO JAPANESE
お母さんにクッキーを焼きたい。
BACK INTO ENGLISH
I want to bake cookies for my mother.
INTO JAPANESE
私は母のためにクッキーを焼きたいです。
BACK INTO ENGLISH
I want to bake cookies for my mother.
That didn't even make that much sense in English.