Pour the mixture evenly over the kielbasa and sauerkraut. Cover the slow cooker and set it to cook on low for 4-5 hours.
Final Touches: Before serving, gently stir to combine the kielbasa slices with the onion and sauerkraut mixture to ensure that the flavors are well integrated.
Serve and Enjoy: Garnish with dried parsley flakes if desired. This dish pairs wonderfully with mashed potatoes or fresh bread.
Notes
In order to add more flavor you can add cubed smoked bacon into the pot. This will make it even tastier.
Taste the sauce mixture before adding to the slow cooker. Adjust the amount of brown sugar based on your preference for sweetness.
Consider serving this dish as part of a larger meal, including other Polish favorites like pierogi or a simple cucumber salad for contrast.
This dish can be prepared ahead of time and stored in the refrigerator overnight. The flavors often deepen, making leftovers a treat.
