Kielbasa comes already cooked, per se, thanks to its drying and smoking process. To serve you can grill them or even cook them as is in boiling water and on low heat.

1. For freshly-made kielbasa, poke holes in the sausage prior to putting it in the pan or pot. This will allow air bubbles trapped within to escape and, later on, allow its natural oils to come out and flavor the sausage while frying.
2. Once you have pricked the sausage, you can simply place it in a large enough pot or a wide pan and cover it with water.
3. Allow the water to boil before reducing the heat and simmering on low for approximately 30 minutes, more for larger sausages.
4. After simmering and cooking the kielbasa in their own juices, you can brown them in the oven or in another pan until they reach the desired outcome.
5. You can also cook fresh kielbasa by grilling them for 4 to 6 minutes and afterward simmering it.
6. To finish your cooking process in the oven, you can partially cook the kielbasa and allow them to cook in the oven in between baking sheets.
7. Then roast them for around 20 minutes or until the skins achieve a golden brown color.