I believe anyone will fall in love with a souffle at first bite, the sweet fluffy cake just melts in your mouth. This is my place of recommendation in Korea.
The most popular souffle at Onhwa is the strawberry souffle and it's quite different from generic souffle you find in Korea. With a perfect amount of cream that doesn't taste overboard and huge slices of strawberries, the souffle will melt straight in your mouth.