Irish Onion Soup Recipe From James Kluchartis

Caramelized onions, beef stock and cheddar cheese unite

James Klucharits has the charming earnestness of someone only a few years out of culinary school. When the sous chef of ABV in New York City talks about his recipe for onion soup, the 2011 French Culinary Institute grad underscores the importance of developing layers of flavor. From the deeply caramelized onions that give the soup body, to the concentrated beef stock that underpins its savory flavor, to the final cap of bronzed cheese, which acts as salty counterpoint to the sweet onions, this soup is a classic example of building flavor from the ground up.

And in contrast to flash-in-the-pan, time-sensitive recipes, this one requires that you take it slow–an ideal winter weekend project.

Recipe adapted from James Klucharits, ABV, New York City

Irish Onion Soup
5 from 55 ratings
Make ABV chef James Klucharits' recipe for Irish onion soup.
Prep Time
Cook Time
Total time: 1 hour
  • Unsalted butter, 2 tablespoons
  • Yellow onions, 2 medium (halved lengthwise and sliced crosswise into ½-inch-thick pieces)
  • Irish whiskey, 3 tablespoons
  • Granulated sugar, 1 tablespoon
  • Kosher salt, 1½ teaspoons plus a pinch
  • All-purpose flour, 1½ tablespoons
  • Garlic, 1 clove (finely chopped)
  • Dark Irish beer (such as Guinness), ½ cup
  • Beef stock or broth, 6½ cups
  • Freshly ground black pepper, ½ teaspoon
  • Day-old baguette, eight ¾-inch-thick slices
  • Sharp cheddar (preferably Irish cheddar), eight ¼-inch-thick slices
  1. In a large skillet set over medium heat, melt the: Unsalted butter Once the butter has melted and the white foam subsides, add the: Sliced onions Cook, using a wooden spoon to stir occasionally, until the onions are soft and golden, about 20 minutes.
  2. Add the: Irish whiskey If you have a gas burner, carefully tilt the pan toward the flame to flambé the onion-and-whiskey mixture. If you have an electric or induction cooktop, use a long match to flambé the whiskey (or you can skip the flambéing altogether). Stir in the: Granulated sugar Cook, stirring occasionally, until the onions turn a darker shade of brown, 4 to 6 minutes. Stir in the: Pinch of kosher salt All-purpose flour Finely chopped garlic Cook until the garlic is fragrant, about 2 minutes. Then, while stirring, pour in the: Dark Irish beer Simmer, stirring occasionally, until the dark beer is reduced by one-third, about 5 minutes.
  3. Add the: Beef stock Remaining 1½ teaspoons kosher salt Freshly ground black pepper Bring the soup to a simmer. Reduce the heat to medium-low and cook for 20 minutes.
  4. Adjust an oven rack to the upper-middle position and heat the broiler to high. Divide the soup among 4 oven-safe bowls and set them on a rimmed baking sheet. To each bowl, add 2 bread slices Cover each slice of bread with 2 pieces of the: 2 pieces sliced sharp cheddar Set the rimmed baking sheet on the upper-middle oven rack and broil until the cheese is melted, golden and bubbling, 3 to 5 minutes (watch the cheese closely, as broiler intensities vary). Remove from the oven and serve immediately.
Calories per Serving 397
Total Fat 19.5 g
Saturated Fat 11.3 g
Trans Fat 0.7 g
Cholesterol 52.9 mg
Total Carbohydrates 27.9 g
Dietary Fiber 1.5 g
Total Sugars 8.6 g
Sodium 1,296.0 mg
Protein 20.2 g
The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.
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