McCarthy’s is a product of Hood River Distilleries. The spirit itself is distilled by Clear Creek Distillery which has provided since 1985 a source for Oregon-made fruit-based liquors and purchased in 2014 by Hood River Distillers. By any measure, Clear Creek is a ‘craft’ scale operation, and in fact the bottle is hand-lettered for the batch and bottling date, as you can see in the photo (click for a high-res image).
According to the Hood river website, the spirit is “distilled in a Holstein pot still using one pass distillation from a fermented mash of 100% peat malted barley from Scotland.” The Holstein still is made from copper, like a pot still, but is an odd combination of pot still and columnar stills, so that in a single run you can produce a very pure spirit such as vodka and get in essence a dozen or more distillations (hence the reference to ‘one pass’ in the note above). This is is a different approach than in Scotland where a pot still is used for the first distillation (the wash still) and a second pot still (the spirit still) is used for the final distillation. Clearly, Clear Creek is taking the final cut from their Holstein long before they’ve distilled the flavor out (as you would with vodka.) Considering the different distillation approach as well as an aging of only 3 years (the legal minimum for Scotch), and different climate, you would not expect this to taste like a single malt Scotch.