Devices, systems, and methods are provided for baking a food product in a portable baking oven. The baking oven includes a main body, lower and upper stones, a heat shield suspending the upper stone above the lower stone, and a heat element emanating heat upward to a rotating flat panel having the lower stone thereon. Convection heat from the heat element moves upward from below the rotating flat panel and past a periphery of the flat panel, channeled by the heat shield to the upper stone, to move along the upper stone, and then down along the heat shield, on the opposite side. With this arrangement, the heat element heats the upper and lower stones with convection heat moving between the lower and upper stones in a side-to-side manner.