Slow Cooker Directions: If using a slow cooker, just add all of your ingredients to the cooker and stir well. Set the cooker to high and cook for about an hour, stirring about every 15 minutes.
Regular Directions: Begin by melting butter in a saucepan over medium heat. Stir in the cornstarch until a smooth paste forms.
Gradually pour in the milk, stirring continuously until the mixture thickens.
Add in the shredded cheeses, one at a time, stirring until melted and smooth.
Incorporate the Worcestershire sauce, dijon mustard, cayenne pepper, onion powder, and garlic powder into the cheese mixture.
Slowly pour in the beer, stirring constantly, until the dip reaches your desired consistency.
Simmer for a few minutes, ensuring all ingredients are well combined and heated through.