1 cup heavy cream
14 cup unsalted butter
12 ounces semi-sweet chocolate chips
12 ounces milk chocolate chips
In large saucepan over medium heat, combine cream and butter. Bring to a simmer, stirring constantly. Remove from heat. Add morsels. Stir until melted and smooth. Cool slightly. Then transfer to a fondue pot or ceramic bowl. Serve immediately. TO REHEAT: Reheat in microwave, 30 seconds, stir -- another 30 seconds, stir -- repeat until heated. Do not microwave for a longer time; you may burn the fondue.