Preheat the oven to 350 degrees.
Spray bundt pan with Bakers Joy - I highly recommend this product, especially for bundt cakes. OR you can heavily grease the pan and dust lightly with cocoa powder.
In the mixer bowl - beat together oil, buttermilk, eggs, food color, vanilla & vinegar.
Add in flour, sugar, cocoa, baking soda & salt.
Beat on medium until fully combined.
Pour the batter into the prepared pan & bake for 45-60 minutes or until the toothpick test is clean.
Allow to cool on a wire rack before removing from the pan.
Once cool- invert onto a serving plate & then make the ganache.