Legend has it that the original beer cheese (a cold spreadable version) was born as a bar snack in Winchester, KY, in the 1930s. A warm version, served as a dip, later made its way into local haunts.
The key to a velvety-smooth beer cheese dip is precise temperature control. Always keep the heat on low once the cream cheese is added, and never allow the mixture to boil after incorporating the other cheeses. Boiling will cause the cheese to separate and become grainy. Gradually adding the shredded cheeses and whisking constantly between additions helps create a homogenous, emulsified dip. For a bolder flavor, consider using an aged cheddar or a touch of smoked paprika. If reheating, do so gently over low heat or in a microwave in short bursts, whisking frequently to restore its creamy texture. Serve with a variety of dippers like soft pretzels, sturdy crackers, or fresh vegetables.