Mini single serve chocolate cake!

1. Preheat oven to 350°F (175°C). Grease and line a 6-inch round cake pan with parchment paper.
2. In a bowl, whisk together the vegetable oil, granulated sugar, egg, vanilla extract, and milk.
3. Sift the all-purpose flour, cocoa powder, baking soda, espresso powder (if using), and salt into the wet ingredients. Mix until smooth.
4. Pour the batter into the prepared cake pan and bake for 27–30 minutes, or until a toothpick inserted into the center comes out clean. Cool completely.
5. For the chocolate ganache: Heat the heavy cream in the microwave until just simmering (30-45 seconds). Pour the hot cream over the chocolate chips or chopped chocolate. Let sit for 2–3 minutes, then stir until smooth. Let the ganache cool and thicken. (You can whip the ganache once it’s cooled or use as is).
6. Spread or pipe the cooled ganache over the completely cooled cake. Slice and serve.