An improved dough-rolling apparatus and method for rolling sheeted dough. The proposed invention comprises a dough-rolling apparatus having a dough sheeter that cuts a dough sheet into preforms having a concave leading edge and convex trailing edge. A rolling curtain creates a rolled preform with the leading edge on the inside and the trailing edge on the outside. The rolled preform is cooked to produce a rolled snack product with consistent thickness throughout its length and a round outer flap.