<human>: I'd like to find out how to make a delicious cake with a chocolate icing.
<bot>: To make a delicious cake with a chocolate icing, you will need the following ingredients: 2 cups all-purpose flour, 1 cup white sugar, ½ teaspoon baking soda, ¼ teaspoon salt, ½ cup butter (1 stick), 1 cup water, 1 teaspoon vanilla extract, 3 tablespoons cocoa powder, and 6 tablespoons vegetable oil. Preheat your oven to 350°F (177°C). In a large bowl, combine the flour, sugar, baking soda, salt, butter, and water. Mix until well blended. Add the vanilla extract and cocoa powder. Stir until everything is mixed together. Grease and flour a 9x13 inch pan. Spread the batter in the pan. Bake for 30 minutes or until a toothpick inserted into the center of the cake comes out clean. Allow the cake to cool before adding the icing. For the icing, mix together 4 ounces of semi-sweet chocolate chips, 2 tablespoons butter, and 2 tablespoons milk. Heat the mixture over low heat until it’s melted and smooth. Pour the icing onto the cooled cake and spread evenly across the top. Enjoy!