I've collected several versions of that recipe.
From Le Cellier Steakhouse:
Cheddar Cheese Soup
½ lb bacon cut into ½ pieces
3 celery ribs cut into ¼ pieces
3 c milk
1 red onion cut into ¼ pieces (medium)
2 Tbl butter
3 c water or chicken broth
3 dashes tabasco
1 c flour
½ c Moosehead beer
¾ lb grated white cheddar cheese
salt and pepper
In a soup pot start to brown the onion over medium heat. When the bacon is starting to get crisp, add the onions, celery and butter. Cook until the onion is translucent. Add the flour and incorporate with the butter. Cook for 4 minutes-constantly stirring. Add the water/broth and whisk. Make sure there are no lumps. Bring to a boil then reduce to a simmer and cook for 15 minutes, stir every couple of minutes. Add the milk and continue to simmer for 15 minutes. Do not boil after you add the milk. After the last 15 minutes, turn off the heat and stir in the cheese then the beer. Add the tabasco and season with salt and pepper. If the soup is too thick you can thin it out with some milk. Serve with your favorite bread and top with some chopped scallions or chives.
From the 2002 F&W festival:
Canadian Cheddar Cheese Soup
8 oz. Smoked Bacon, medium dice
2 Tblsp. Butter, unsalted
1 Medium Red Onion, meduim dice
3 ribs Celery, meduim dice
1 cup All purpose Flour
3 cups Chicken Stock, fresh made or low sodium
3 cups Whole milk
12 oz. White Cheddar, Canadian black Diamond
3 dashes Tabasco
3 dashes Worcestershire
4 fl. oz. Canadian Ale, Moosehead, warm
Kosher Salt.
Black Pepper, fresh ground
1 Tbslp. Chives, thinly sliced
2 Tblsp. Smoked Bacon, rendered crisp, fat removed
Method of Preparation:
Heat milk and chicken stock in sauce pan and bring to a simmer. Hold hot for soup. Put bacon in a large heavy bottom, non-reactive soup pot over a medium heat and cook bacon half way. Add butter, onion and celery and cook until onions are translucent and bacon has crisped. Stir in flour to make a roux and cook 7 minutes stirring often. Whisk in milk and stock stirring constantly, ensure that there are no lumps. Bring to a gentle simmer stirring often, let simmer 15 minutes, take caution not to scorch liquid. Remove from heat and quickly whisk in cheese until completely incorporated. Add Tobasco, Worcestershire and warm ale, season with salt and pepper to taste. Serve and sprinkle with chives and rendered bacon.
From the 2001 F&W festival:
Canadian Cheddar Cheese Soup
Yields 4 to 6 servings
1 lb Cheddar cheese -- shredded
½ lb Bacon
4 strips Smoked bacon - applewood
10 Tbl Butter
5 c Milk -- warmed
1 c Celery -- finely chopped
1 Length Leeks -- finely chopped
2 each Red onion -- finely chopped
1½ c Flour
1 qt Chicken stock
1½ tsp Tabasco sauce
3 tsp Worcestershire sauce
To taste Black pepper -- freshly ground
To taste Kosher salt
3 tsp Ale
Method - Slowly heat milk. Brown the bacon (separately from the smoked bacon) first, then after it is rendered half way add the smoked bacon and render together. Add the butter and melt. Add celery, onions and leeks, cook until translucent. Add flour and mix thoroughly to form a roux. Add chicken stock and simmer for 3 minutes. Add warm milk and stir vigorously to thicken. Cook out roux until thickened (it should not have a starchy taste). Reduce heat to low, add cheese and stir until melted. Season with kosher salt, pepper, Tabasco and Worcestershire sauce. Just prior to serve, add warm ale.
Note : When re-heating soup, do not bring to a boil, it will break down. Makes 1 gallon.