Abstract: Described herein is a method for controlling a baking oven using a timer module, said timer module comprising a timer relay, a switch for operating mode selection, and a switch for setting a heating temperature or a heating power. The timer relay is serially connected into a power supply line to a heating device of the baking oven, whereby following the activation of a first safety lock function on the timer module by a special user function, a timer setting is locked against change. When the timer setting is locked thus, a baking oven operating cycle that has been pre-specified by a user by timer adjustment proceeds as specified and, thereafter, the heating device is switched off by opening the timer relay. Then, the timer relay can be reactivated only by an additional special user function on the timer module.