Preheat oven to 350F/177C.
Grab your parchment paper, line your pan and spray with butter or cooking spray.
Mix the eggs, buttermilk, canola oil, greek yogurt and vanilla together until well combined, in a large bowl.
Next add the flour, cocoa powder, baking powder, sugar, baking soda and salt. Mix it all together until all combined and you no longer have flour clumps.
Stir in hot coffee. This should help the batter become pourable. Add in your chocolate chips and stir.
Pour your cake batter into your cake pan and bake for 20-25 minutes.
Once done baking, remove your cake from oven and let cool completely before adding your frosting.