In a medium bowl, pour the buttermilk over the chicken tenders, ensuring they are fully submerged. Cover the bowl and refrigerate for at least 30 minutes.
Create a three-part dredging station by placing each ingredient in a separate bowl: combine the all-purpose flour with a generous pinch of salt, ground black pepper, garlic powder, and onion powder in Bowl 1; place the beaten eggs in Bowl 2; mix the panko breadcrumbs with the everything bagel seasoning in Bowl 3.
Once the chicken has marinated, remove it from the buttermilk, allowing any excess to drip off. Coat each tender in the seasoned flour mixture, dip into the beaten eggs, and then roll in the panko and everything bagel seasoning mixture.
Heat a large frying pan over medium-high heat. Add enough cooking spray or oil to coat the bottom of the pan evenly. In batches, carefully place the chicken tenders in the hot pan, cooking for about 4-5 minutes on each side until golden brown and cooked through.
Once cooked, transfer the tenders to a plate lined with paper towels to absorb any excess oil. Let them cool slightly before serving.
Notes
Serve with your favorite dipping sauce and garnish with fresh parsley.