1. Preheat the oven to 350 degrees F or 175 degree C.
2. Grease an 8X8 inches pan and set aside.
3. Mix the cocoa powder, baking soda, 1/3 cup of vegetable oil, and boiling water until wet.
4. Then put in sugar, eggs, 1/3 cup of vegetable oil, flour, vanilla, and salt. Mix well.
5. Add to the greased pan and sprinkle chocolate chips and walnut. Cook in the preheated oven for 35-40 minutes. The brownies are done when you have a clean inserted toothpick.
6. Allow to cool then cut into squares.