Classic Finnish Hot Dog with Caramelized Onions

Method

1. Heat a skillet over medium heat and add vegetable oil.
2. Add sliced onions and cook until softened, about 5 minutes.
3. Sprinkle brown sugar over the onions and continue cooking until caramelized, about 8-10 minutes.
4. Prepare the hot dog by grilling or pan-frying the sausage until fully cooked.
5. Assemble the hot dog in the bun, adding mustard, cucumber relish, and the caramelized onions.
6. For whole cuts, check a minimum internal temperature of 63°C (145°F), then rest for at least 3 minutes before serving.