Ingredients
1. Unsweetened cocoa (10 level tbsp)
2. flour (3c)
3. baking soda (2tsp)
4. salt (1pinch)
5. sugar (2c)
6. cold water (2c)
7. vinegar (2tbsp)
8. salad oil (3/4c)
9. vanilla (2tsp)

Method of preparation:-
1. Take a large mixing bowl, sieve all the dry ingredients in it and then add the rest of the ingredients in it. Mix them with a large spoon until the mixture becomes smooth.

2. Take a baking pan of 13*9*2-inch, grease it and then flour it. Put the mixture into the greased pan with spoon. Now place the pan in oven and bake it for about 30 minutes at 350 degrees F.

3. Now take out the pan from the oven and keep it to cool. Remove the cake from the pan and cool it completely. Now frost the cake with your favorite frosting and then serve it.