Recipe courtesy of Emeril Lagasse, 1999.

12 ounces light beer
1 1/2 cups water
2 cups chopped yellow onions
2 pounds Kielbasa sausage, links
Salt
Freshly ground black pepper
2 tablespoons butter
2 tablespoons flour
2 tablespoons white vinegar
1 tablespoon sugar
2 tablespoons finely chopped parsley

In a saucepan, over medium heat, combine the beer, water, onions and sausage. Season with salt and pepper. Bring to a boil, reduce to a simmer and cook, covered, for 25 minutes. Remove the sausage from the pan and cool. Slice the sausage into 1 -inch pieces.
In a large sauté pan, over medium heat, melt the butter. Stir in the flour and cook for 4 to 6 minutes for a light brown roux. Stir in the vinegar, sugar and the reserved beer and onion mixture. Season with salt and pepper. Bring the mixture to a boil, reduce to a simmer and continue to cook until the sauce coats the back of a spoon, about 15 minutes. Add the sliced sausage and continue to cook for 5 minutes. Garnish with parsley.
Yield: 4 to 6 servings