YOU SAID:
I decided that the cake I had had had had enough time to get into my mouth
INTO JAPANESE
持っていたケーキは口に入るのに十分な時間があったと思いました
BACK INTO ENGLISH
I thought the cake I had had enough time to eat
INTO JAPANESE
食べた時間のあるケーキだと思いました
BACK INTO ENGLISH
I thought it was a cake that I had time to eat
INTO JAPANESE
食べる時間があったケーキだと思った
BACK INTO ENGLISH
I thought it was a cake I had time to eat
INTO JAPANESE
食べる時間があったケーキだと思った
BACK INTO ENGLISH
I thought it was a cake I had time to eat
That didn't even make that much sense in English.