Combine chicken strips, buttermilk, and Frank's in a large zipper bag; refrigerate for at least an hour or up to overnight.
Preheat oven to 475 degrees. Coat baking sheet with cooking spray.
Place crackers in a medium zipper bag and crush to small pieces. Transfer to a shallow dish. Take each chicken strip, shake off excess buttermilk, dredge in crackers, place on prepared baking sheet.
Bake 15 minutes, turning once until crispy and internal temp. reaches 165 degrees.