Ingredients
Equipment
Method
- Melt the unsalted butter in a heavy-bottomed pot or Dutch oven over medium heat. Once foaming, add the diced onion, carrot, and celery.
- Sauté the vegetables gently for 5 to 7 minutes until softened and translucent. Add the minced garlic during the last minute of cooking until fragrant.
- Sprinkle the all-purpose flour over the vegetables. Stir constantly for about 2 minutes to cook out the raw flour taste; the mixture should look pasty and coat the vegetables.
- Slowly pour in the Irish stout while whisking constantly. Allow it to bubble up vigorously and scrape the bottom of the pot to deglaze any flavorful browned bits.
- Pour in the chicken stock and heavy cream, stirring well to combine. Bring the mixture to a gentle simmer.
- Let the soup simmer (do not boil violently) for 10 to 15 minutes. The liquid will thicken, and the vegetables should become completely tender.
- Reduce the heat to low. This is critical to prevent the dairy from curdling.
- Add the freshly grated sharp cheddar cheese a handful at a time, stirring constantly until each batch is fully melted before adding the next.
- Once the soup is velvety smooth, stir in the Dijon mustard and Worcestershire sauce.
- Taste the soup and season with salt and pepper as needed. Serve hot with Irish soda bread or pretzel croutons.
Notes
Crucial Tip: Never use pre-shredded bagged cheese, as the anti-caking agents prevent smooth melting and result in a gritty texture. Always grate your own block cheese. If you find stout too bitter, you can substitute it with a red ale or lager. For a vegetarian version, simply swap the chicken stock for vegetable broth.
