オニオングラタンでしょう
onionguratandeshō
1. Probably onion gratin.
Noun
#272679
1. Probably onion gratin.
1. gratin
1. onion (Allium cepa)
1. it seems; I think
2. right?; don't you agree?
1. It wasn't gratin.
1. Gratin.; It is a gratin.
1. If it were gratin; When it's gratin
1. If gratin; When gratin
1. It is not gratin.
1. Not gratin.; It's not gratin.