Chocolate Truffle Cake

Bahan-bahan (15 porsi)

• 1 cup (2 sticks) unsalted butter
• 8 ounces semisweet chocolate
• 1 cup granulated white sugar
• 4 large eggs, (well beaten)
• 10 ounces semisweet chocolate chips
• 1 cup heavy whipping cream
• whipped cream or ice cream ((optional))