Place the bratwurst in a pan or skillet.
Pour water on it, just enough to cover them.
Cover the pan with a lid, then place it on the stove.
Set heat to medium and bring to a slow boil.
Once it's boiling, adjust the heat to low and simmer for about 10 minutes.
Turn off the heat and take the bratwurst out to proceed to either frying or grilling on the stove.
If frying on a skillet, pour 1 to 2 tablespoons of oil (as little oil as possible; just enough to coat the pan) into the pan.
Once the oil is ready, add and start frying the bratwurst, turning them over, so all sides turn brown.
If using a grilling pan, place it on the stovetop and set the heat to medium-high.
Once the pan is ready, start grilling the simmered bratwurst, turning them over on all sides.
Serve right away, as a bratwurst sandwich or with some sauerkraut.