Preheat oven to 350 degrees F. Grease the mini bundt pan with Baker’s Joy spray.
In a medium bowl, mix together the buttermilk, oil, eggs and vanilla. This is the wet mixture.
In a stand mixer bowl, mix together flour, sugar, baking soda, baking powder and salt until combined.
On low speed, add the wet mixture into the stand mixer bowl.
Add coffee slowly into the batter. Mix again until it is just combined.
Divide the batter into the pan. Only fill 1/2 of each cavity because it will overflow if you fill more.
Bake for 15 minutes or until an inserted toothpick comes out clean.
Flip unto wire rack and let cool.
Chocolate Ganache
Put heavy cream and 2/3 of the chocolate into a microwave safe bowl. Heat up the mixture in a microwave with a 30 seconds increments until the chocolate is melted.
Whisk until it becomes a smooth mixture. Pour onto the bundt cake.
Sprinkle the top with chopped dark chocolate chips.