Abstract: Solar energy is the renewable energy that can be used to provide, clean and cost- effect energy for cooking food by using a solar cooker. A parabolic solar cooker that uses glass reflective materials was developed. The developed solar cooker has a concentrating surface area of 2.5 m2, a focal length of 0.65m, and a depth of 0.4m. The thermal performance of the solar cooker was conducted in Central Regions in Tanzania. The cooking food substances tested were water, meat, and beans. The average maximum temperature attained was 121 oC. The time taken to boil water was 15mimutes whereas the time taken to cook meat and beans were 50 minutes and 90 minutes respectively.