CHOCOLATE MOUSSE CAKE

For the Chocolate Cake Base:

• 1 cup all-purpose flour
• 1 cup granulated sugar
• 1
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/
• 1/2 cup buttermilk
• 1/4 cup vegetable oil
• 1 large egg
• 1 teaspoon vanilla extract
• 1/

For the Chocolate Mousse:

• 2 cups heavy cream, chilled
• 1 cup semisweet chocolate chips or chopped chocolate
• 1 teaspoon vanilla extract
• 1/4 cup powdered sugar (or to taste)

For the Chocolate Ganache (optional):

• 1/2 cup heavy cream
• 1 cup semisweet chocolate chips or chopped chocolate