In a medium to large size sauce pan, melt butter, then add in flour and whisk together for approximately 30 seconds to fully combine. Next, gradually whisk in milk. Whisk constantly to help break down any lumps and get a smooth base.
Once that is smooth, whisk in the beer, Dijon mustard, garlic, salt, and paprika. Allow this to bubble for 3 minutes. Finally, whisk in the cheese and serve hot.
