Directions
  1. Preheat grill to medium to medium-high heat.
  2. While grill heats, slice onion thinly.
  3. Place hot dogs onto the grill and place onions into a skillet with oil or butter and caramelize. When onions are almost done, push to one side of the skillet and warm pierogis.
  4. Once hot dogs are done, place into buns. Top each hot dog with two mini pierogis and caramelized onions.
  5. Serve.