Pat the pork jowl dry with paper towels and season evenly with kosher salt, black pepper, garlic powder, and smoked paprika. Let rest for 20 minutes.
Place the sliced onion, garlic cloves, and bay leaves in the bottom of a Dutch oven. Pour in the chicken broth.
Add the seasoned pork jowl to the Dutch oven. Cover tightly and cook at 300°F for 2½ to 3 hours until fork-tender.
Remove the pork jowl from the braising liquid and allow it to cool slightly for about 10 minutes.
Slice the pork jowl into thick pieces using a sharp knife.
Heat a cast-iron skillet over medium-high heat. Sear the pork jowl slices for 2 to 3 minutes per side until crispy and golden brown.
Transfer the crispy pork jowl to a paper towel-lined plate and allow it to rest briefly.
Serve immediately while hot and crispy.