My ultimate hotdog:

1 chicken hotdog (or whichever hotdog you prefer)
1 onion
ketchup
pickle chips-chopped
bacon

I made this a couple of months ago and it seemed to be a hit.
Cook up your hotdog however you like.
Slice up onion, and put in a pan on medium heat with olive oil. Wait until the onions are tender, around 20 minutes. Once they are cooked, squeeze in enough ketchup to coat the onions.
Mix them around and cook for an additional seven minutes.
Set oven to 375. Place bacon on a baking sheet that is lined with a cooling rack. After you put the bacon in the oven, leave it there for around 25 minutes, or desired crispness. When that is finished, chop it up.
After everything is cooked, place on a hotdog bun. Hotdog, onions, pickle, and bacon. Your ultimate hotdog is ready to be eaten.