Currently they are running a Buy 2 Get 2 Free promo, which works up to $1 per bun!! A huge steal, if you asked me. The catch? You don't know what flavour bun you will get since there are no labels or indications. I cheated and looked at the bottoms of each bun to get a hint of what flavour each bun is. 😆 Lucked out and got what I wanted: salted egg yolk!! The filling is absolutely generous and rich in salted egg flavour. It can be a bit sweet, and the bun is really ordinary (other than being rainbow-coloured), but worth it for the salted egg yolk lava at $1 imo.