A new cooking method using sunlight as a heat source was proposed. We developed an inexpensive, lightweight, and non-bulky parabolic solar cooker and a special cooking container in the form of a donut-shaped aluminum pouch that can cook any food item in a short time and can be easily disposed of after use. Furthermore, the solar heat utilization rate of this device was calculated by simulation. The results showed that the solar utilization efficiency was about 9%, and that the cooking environment was limited by the illuminance, outside temperature, wind speed.