Melt butter in medium sized pot over medium heat. Add flour, whisk and cook 30-60 seconds or until lightly golden and bubbling.
Slowly add beer while whisking.
Add milk, garlic powder, worcestershire sauce, mustard and hot sauce. Whisk.
Bring mixture to a light simmer.
Turn off burner. Slowly add in shredded cheese while whisking between each addition.**
Salt and pepper to taste.
Serve warm with pretzels, crackers, chips and/or veggies.