Step 1

Preheat grill or grill pan for medium-high heat.

Step 2

Melt butter in a skillet over medium heat. Add onions, and cook slowly until the onions have softened and turned deep brown, about 15 minutes. Warm the cream cheese over low heat in a small skillet until very soft.

Step 3

Grill hot dogs until well browned. Lightly grill hot dog buns on both sides.

Step 4

To assemble cheese dogs, spread warm cream cheese on toasted hot dog bun, add hot dog or sausage, top with onions, mustard and sauerkraut, if desired.