On choosing the Happy Biscuit of Taxation

Not doing Dry January - don't feel the need as my alcohol intake is not something you'd notice.  Biscuit temptation, however, is another thing.

So, I've been on a self-imposed biscuitless diet until the end of January, which is today (on the basis that the last day of January and me filing my tax form are synonymous, and I filed it today).  Yay!

Now, which biscuit...?