- 1 tablespoon olive oil
- 2 (16 ounce) packages turkey kielbasa, cut into bite-size pieces
- 1/2 cup diced onion
- 1 cup lager-style beer
- 2 tablespoons brown sugar
- 1 tablespoon Dijon mustard, or to taste
- salt and ground black pepper to taste
- Heat oil in a skillet over medium heat. Cook and stir kielbasa and onion in hot oil until the onion begins to soften, about 5 minutes.
- Gently whisk beer, brown sugar, and mustard together in a bowl; pour into the skillet.
- Bring the mixture to a boil and cook until the volume of the liquid reduces by half, about 15 minutes. . Season with salt and pepper.