Chocolate Cornpone with Hot Mexican Chocolate Sauce

Preheat oven to 375 degrees F. Butter a 9-inch round cake pan and line the bottom with a disk of parchment paper. Place chocolate in a double boiler over simmering water and stir until melted. Remove from heat and let cool slightly. Whisk together the flour, cornmeal, sugar, chili powder, baking powder, and salt in a large bowl. Stir in the eggs and buttermilk and then stir in the melted chocolate. Scrape batter into the prepared pan and bake for 18 to 20 minutes. Cool in the pan on a rack. Once the bread is cool, break into 1-inch chunks and spread in the bottom of a 2-quart baking dish.