Blended Scotch is the workhorse — Johnnie Walker (Red/Black/Green/Gold/Blue), Famous Grouse, Cutty Sark, Dewar's, Chivas. Smoother than single malts, generally less assertive. Used for highball drinks, the Penicillin classic base (Famous Grouse or similar), and value pours. Sub-categories: blended malt (no grain whisky) vs blended Scotch (with grain).