Automatic high energy saving cooker

A method of cooking in an energy conserving pressure cooker apparatus that receives edible foodstuff, comprising the steps of:

• (a) providing an inner pressure cooking pot that is permanently housed within an inner wall of an insulated outer container;
• (b) placing a liquid and foodstuff to be cooked into the inner cooking pot;
• (c) sealing the inner pot and the outer container with a single cooking lid;
• (d) setting a means for controlling to cause a heat generator to heat foodstuff in the inner cooking pot for a specified period of time, and to discontinue heating of the foodstuff at the expiration of said specified period of time;
• (e) heating the liquid and ingredients in the inner pressure cooker pot with said heat generator;
• (f) sensing when the liquid in the inner pressure cooker pot commences to boil with a thermal sensor;
• (g) continuing to heat the liquid and foodstuff in said inner pressure cooker pot for said specific period of time;
• (h) discontinuing heating of the foodstuff in said inner pressure cooker pot with said heat generator;
• and
• (i) adiabatically cooking the ingredients in the inner pressure cooker pot that is permanently disposed in an outer insulated container at a temperature achieved by heat retained the inner and outer containers, without additional heat being provided from said heat generator.