Preheat your oven to 425°F. Line a baking sheet with parchment paper.
Wash and cut the sweet potato into wedges. Toss them with a little salt and pepper and set aside.
Place the sweet potato wedges on the baking sheet and roast in the oven for about 25-30 minutes, turning halfway through until tender and lightly browned.
While the sweet potatoes are roasting, prepare the chicken. Pat the chicken breast dry.
In a shallow bowl, whisk the egg white. In another plate, place the panko breadcrumbs.
Dip the chicken breast first into the egg white, ensuring it is fully coated, and then into the panko breadcrumbs, pressing lightly to adhere.
Heat a skillet over medium-high heat and lightly spray with cooking spray. Sear the breaded chicken for 2-3 minutes per side until golden brown.
Transfer the chicken to a clean baking sheet and bake in the preheated oven for an additional 8-10 minutes or until the chicken is cooked through.
Once cooked, brush the chicken generously with buffalo sauce.
Serve the crispy buffalo chicken alongside the roasted sweet potato wedges and enjoy!