Melt the butter in a medium-size saucepan over medium-low heat.
Add the garlic and cook, stirring for about 30 seconds. Add the flour and whisk until a thick paste forms, about 1 minute.
Slowly and gradually add in the milk while continuing to whisk. Keep whisking until the mixture thickens, about 1 minute.
Slowly add the beer while whisking then add the mustard, Worcestershire, and seasonings.
Add in all of the cheese and mix until it’s completely melted. Remove from heat.
Serve warm. The mixture will thicken as it cools but can be reheated on the stove or in the microwave. Enjoy with Homemade Soft Pretzels!
