The bun was pillowy soft, while the exterior had a thin crisp layer - all toasted buns should aspire to be like that!! The Hainanese kaya was not bad, not too sweet, nicely caramelised, but I wish that it was more consistent - the first time I had it, it was quite fragrant, but on my second try it didn’t taste as good. But the combi of the kaya + butter was very good! The butter added just the right amount of flavour and richness. Just be sure to eat it immediately / separate the buns if not it’ll melt too quickly bc of the heat from the buns.