A glass-ceramic cooking apparatus comprising at least: one glass-ceramic surface for supporting and heating cooking vessels; at least one heating element mounted below the glass-ceramic; a temperature sensor for each heating element placed on an underside of the glass-ceramic for measuring the temperature of a glass heating area of the glass-ceramic; and a control unit which is electrically connected with each heating element for adjusting an output power of the heating element; the control unit configured to compare the temperature sensor's output against predetermined upper and lower temperature limits derived from an established relationship between the measured glass-ceramic temperature and a cooking oil temperature during cooking, whereby, in use, when the temperature output by the temperature sensor reaches the upper temperature limit, the control unit is configured to reduce the output power of the heating element, and when the temperature output by the temperature sensor reaches the lower temperature limit, the control unit is configured to increase the output power of the heating element, such that, in use, the cooking oil temperature within the cooking vessel is limited in a controlled cycle and kept below the cooking oil ignition point while still maintains the minimum temperature for a desired cooking performance; characterised in that the temperature sensor comprises a temperature probe, insulation material and a ceramic casing, the temperature probe and insulation material being provided between the glass-ceramic and the ceramic casing, the insulation material being compressed therebetween; wherein the temperature probe is adapted to be in direct contact with the underside of the glass-ceramic and surrounded by the insulation material, such that the temperature probe is insulated from the heating element. one glass-ceramic surface for supporting and heating cooking vessels; at least one heating element mounted below the glass-ceramic; a temperature sensor for each heating element placed on an underside of the glass-ceramic for measuring the temperature of a glass heating area of the glass-ceramic; and a control unit which is electrically connected with each heating element for adjusting an output power of the heating element; the control unit configured to compare the temperature sensor's output against predetermined upper and lower temperature limits derived from an established relationship between the measured glass-ceramic temperature and a cooking oil temperature during cooking, whereby, in use, when the temperature output by the temperature sensor reaches the upper temperature limit, the control unit is configured to reduce the output power of the heating element, and when the temperature output by the temperature sensor reaches the lower temperature limit, the control unit is configured to increase the output power of the heating element, such that, in use, the cooking oil temperature within the cooking vessel is limited in a controlled cycle and kept below the cooking oil ignition point while still maintains the minimum temperature for a desired cooking performance; characterised in that when the temperature output by the temperature sensor reaches the upper temperature limit, the control unit is configured to reduce the output power of the heating element, and when the temperature output by the temperature sensor reaches the lower temperature limit, the control unit is configured to increase the output power of the heating element, such that, in use, the cooking oil temperature within the cooking vessel is limited in a controlled cycle and kept below the cooking oil ignition point while still maintains the minimum temperature for a desired cooking performance; characterised in that the temperature sensor comprises a temperature probe, insulation material and a ceramic casing, the temperature probe and insulation material being provided between the glass-ceramic and the ceramic casing, the insulation material being compressed therebetween; wherein the temperature probe is adapted to be in direct contact with the underside of the glass-ceramic and surrounded by the insulation material, such that the temperature probe is insulated from the heating element.