Blended malt Scotch is a combination of how many single malts from different distilleries?

Blended malt Scotch refers to a whisky that is made from a blend of single malts sourced from two or more different distilleries. The term "at least one single malt" is significant because it highlights that blending can occur with multiple single malts, but the essential factor is that there has to be at least one of these individual malts involved. This phrase emphasizes the flexibility inherent in blended malt Scotch, which can include a wide variety of flavors and characteristics derived from different distilleries, thereby enriching the final product. The blending process allows for a harmonious balance of various taste profiles, making blended malts a popular choice among whisky enthusiasts.