Combine chocolate and butter in medium metal bowl; set bowl over saucepan of simmering water. (epicurious.com)
Melt the coconut butter by placing the glass jar in small saucepan of simmering water. (naturalkitchenadventures.com)
Stir chopped chocolate and butter in a large bowl set over same saucepan of simmering water until melted and smooth, 4 - 5 minutes; set aside. (epicurious.com)