"Create a healthy, weight loss-friendly version of fudge rounds using the following ingredients as a base: unsalted butter, natural cocoa powder, sugar, eggs, vanilla extract, all-purpose flour, cornstarch, baking powder, baking soda, salt, and a chocolate frosting filling with butter, powdered sugar, cocoa powder, heavy cream, and vanilla extract. The recipe should reduce sugar and unhealthy fats, use healthier alternatives, and maintain good taste and texture."