That's how I'll be enjoying my toast from now - topped with salted butter and a drizzle of condensed milk. Sing Heung Yuen's butter and condensed milk cui cui was simple dish of super crispy toast done the same way. Sinfully delish. Definitely not nearly as sweet as it sounds. The salted butter was lovely contrasted with the sticky sweet condensed milk. If you aren't a fan of biscuit-like toast, you can order it with fluffier thick toast!