<human>:  What are the steps to baking a chocolate cake?
<bot>: 
1. Preheat oven to 350 degrees F (175 degrees C).
2. Grease and flour a 9x13 inch pan.
3. In a large bowl, mix together 2 cups of all-purpose flour, 1 teaspoon of baking soda, and 1 teaspoon of salt.
4. In a separate bowl, cream together 1 cup of butter and 2 cups of white sugar.
5. Beat in 4 eggs, one at a time.
6. Mix in 1 teaspoon of vanilla extract.
7. In a third bowl, mix together 3/4 cup of cocoa powder and 1 cup of boiling water until creamy.
8. Blend the ingredients from the third bowl into the mixture in the large bowl.
9. Beat in 1/2 cup of buttermilk.
10. Pour the cake batter into the prepared pan.
11. Bake for 25 minutes in the preheated oven, or until a toothpick inserted into the center of the cake comes out clean.