I've been away from my social account and my website for a while. I was traveling.
A very long story short: I visited 5 different airports within a very short time and traveled to some awesome places.
But, with traveling comes the airport Duty Free shopping and maybe even some travel retail exclusives, right? So I checked the whiskies on offer on 4 airports (the 5th was Amsterdam, where I departed from. No shopping on departure for me.) and I returned with some bottles. One of those bottles is this one: The Glenburgie aged 15 year old, by Ballantines.
This bottle series was launched in 2017 by Ballantines, or rather the Chivas Brothers group, to please their single malt fans. In a serie of three (Glenburgie, Glentauchers and Miltonduff), Ballantines presented the 3 main ingredients for their Blend as single malts, bottled at 15 years old.

Now, we do have more distilleries where most if not all of their production is going straight into blended whisky. Blair Athol for example, only bottles 1% of their whisky on their own label. So that is not a strange thing, but a Glenburgie is a rather hard to find if not as a fingerprint ingredient for Ballantines.