2ribscelery, finely diced/grated (include a few leaves)See Recipe Notes
1bay leaf
3clovesgarlic, minced or microplaned
½tspkosher salt
¼tspfreshly cracked black pepper
¼tspcayenne pepper
⅓cupbutter (about 5 T)~ I use Kerrygold salted butter
⅓cupflour
32ozchicken stock, preferably homemade (4 cups)
112-oz bottle Irish lager-style beer, like Harp
4cupswhole milk
1lbIrish cheese, like Dubliner, coarsely shredded (6 cups)
2tbspDijon mustard
1tbspWorchestershire sauce
For Garnish: sliced scallions, snipped chives, toasted fresh croutons or bacon crumbles
Optional: mini sourdough bread bowls for serving
Instructions
In large enameled cast iron stock pot, heat 2 tablespoons butter (or bacon grease) over medium heat. Add onion, celery and bay leaf and sauté about 5 minutes. Add the garlic, salt, black pepper and cayenne and cook 1-2 more minutes. Add the butter and stir until melted. Sprinkle the flour over the mixture and stir and cook 1 more minute.
With a wooden spoon or flat whisk, slowly stir in the stock, then the beer, then the milk to combine. Lastly, add the cheese slowly, stirring to combine. Increase the heat to medium-high, continue stirring to almost a boil. Reduce heat back down to medium, cook and stir frequently until cheese is mixed in well and melted, about 20 minutes. Remove bay leaf and stir in mustard and Worcestershire; taste for salt. Serve garnished with scallions, chives, croutons and/or crumbled bacon, in a bread bowl, if desired.
Notes
Irish Dubliner cheese is sweet, nutty, grainy and sharp. Any sharp white cheddar will work.
Using a food processor will get the onion and celery finely chopped, almost mushy, which is what you want for this soup. Roughly chop the onion and celery first, in order to get an even dice in the processor.
You can use bacon drippings to cook the onions/celery mixture instead of butter (then you'll have bacon crumbles for topping!)