These Brownie Hearts mix bittersweet and semisweet chocolate with loads of butter, eggs, granulated sugar and brown sugar for a wealthy dessert. Fudge Brownie Hearts Prep time: 30 mins Cook time: 35 mins Total time: 1 hour 5 mins Serves: 10 to 12 heart shapes Ingredients 1 cup butter 8 ounces bittersweet chocolate, coarsely chopped