In a saucepan over medium heat, melt the butter. Add the flour and cook, stirring constantly, for 2 minutes. Take a sip of beer (shhhhh), and then slowly whisk in the milk and beer, increase the heat to medium-high and bring the mixture to a simmer.

Continue drinking said beer.

Add the mustard, Worcestershire and hot sauce and cook, whisking occasionally, until the mixture begins to thicken, 3 to 5 minutes. If you are brave, add in more mustard to taste. Working in batches, add the cheese in large handfuls, whisking until sauce reaches an ooey-gooey consistency. Season with salt and pepper.

Serve immediately with soft pretzels, bread or any other vessel to transport this cheesy goodness directly to your mouth.