01 -
In a medium-sized cast iron pan, add diced bacon pieces over medium heat and stir until crispy. Remove and reserve, discarding the bacon fat.
02 -
In the same pan over medium heat, add flour and unsalted butter. Using a whisk, stir to combine. Once the butter is completely melted, continue stirring frequently for three minutes to activate the roux. See notes regarding the roux.
03 -
Add the beer, stir, and let it simmer for 2 minutes, stirring often. Adjust the heat to maintain a simmer. After 2 minutes, add the milk and continue to simmer for an additional 2 minutes.
04 -
Add in the cream cheese and shredded cheeses and reduce the heat to low. Stir until the cheese melts and combines, approximately 2 minutes.
05 -
Add Dijon mustard, Worcestershire sauce, and chives. Stir to combine.
06 -
Add reserved bacon over the top of the cheese sauce and serve immediately. Alternatively, transfer to a fondue or warming pot to maintain warmth. Serve with fresh pretzels, corn chips, or grilled sausage.