Follow these easy steps to create your Chocolate Cherry Upside Down Cake:

1. Preheat the Oven: Set your oven to 350°F (175°C). Grease a 9-inch round cake pan.
2. Prepare the Cherry Base: In a saucepan over medium heat, melt the butter. Add brown sugar and stir until dissolved. Remove from heat and pour evenly into the bottom of the prepared pan.
3. Arrange Cherries: Evenly distribute the pitted cherries over the brown sugar mixture in the pan.
4. Mix Dry Ingredients: In a large bowl, combine flour, cocoa powder, granulated sugar, baking powder, baking soda, and salt.
5. Combine Wet Ingredients: In another bowl, whisk together vegetable oil, eggs, vanilla extract, and buttermilk until smooth.
6. Combine Mixtures: Gradually add the wet ingredients into the dry ingredients, stirring until completely combined.
7. Pour Batter: Carefully pour the batter over the cherries in the cake pan, smoothing it out evenly.
8. Bake: Place in the preheated oven and bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.
9. Cool the Cake: Remove from the oven and let it cool in the pan for 10-15 minutes.
10. Invert the Cake: Run a knife around the edges before gently inverting onto a serving plate. Tap lightly to release the cake.

Following these steps will lead you to an incredible Chocolate Cherry Upside Down Cake that is simply irresistible!