Add the relish to the dough mixture. Gently fold the dough over itself a few times, deflating it a bit and mixing the relish into the dough, but not over mixing it.
Spread about half the olive oil onto the eighth sheet pan.
Drizzle some of the flour onto a work surface and pour the dough out onto it. It will be very wet dough.
Fold the dough ball onto itself a few times, utilizing the dry edges of the dough from the counter. (refer to links above if you need additional help!) When you have a somewhat decent looking dough ball, flip it on to the sheet pan, seam side down. Spread it out with the palm of your hand a bit so it is even in the pan. As it rises, it will spread out more.
Brush the top with olive oil and cover with plastic wrap. Allow to rest for 2 hours.
After the first hour, start preheating the oven to 525.
Spiral the hot dogs by starting at one end of your cutting board and inserting a knife about 1/3 of the way into a hot dog at one end at a 45 degree angle. Gently roll the hot dog along the cutting board moving the knife as you go creating the spiral cut. There is an alternative method I have linked above if you need more help!
When the dough is risen fully, use your fingertips to press and create the typical bumpy focaccia shape.
Spread the shallots onto the surface of the bread.
Press the 6 hot dogs into the bread making sure to press them well into the bread so that there is dough in between each dog. Make sure they are spread evenly.
Bake at 525 for 20 minutes until fully cooked and browned.