Preheat the oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan.
In a large bowl, whisk together flour, sugar, cocoa powder, baking powder, baking soda, and salt.
Add eggs, buttermilk, oil, and vanilla extract to the flour mixture and beat until well combined.
Slowly stir in boiling water and peppermint extract. The batter will be thin.
Pour the batter into the prepared pan and bake for 30 minutes or until a toothpick inserted comes out clean.
Remove the cake from the oven and poke holes all over the top using the handle of a wooden spoon.
In a small saucepan, heat the heavy cream until just simmering and pour over chocolate chips to make ganache. Stir until smooth.
Pour ganache evenly over the warm cake to soak into the holes. Let the cake cool completely before serving.
Notes
This Mint Chocolate Poke Cake is perfect for chocolate lovers looking for a refreshing twist. Store leftovers covered in the refrigerator for up to 4 days.