Stir bittersweet chocolate in a medium metal bowl set over a saucepan of simmering water until melted.
Seattle Times(Nov 30, 2016)
The brownie is an ingenious combination of blond, bittersweet caramel and dark, bittersweet chocolate.
Seattle Times(Jun 13, 2016)
Melt 6 ounces chopped bittersweet chocolate in a double boiler or a heatproof bowl set over a pot of simmering water.
Wall Street Journal(Jun 09, 2016)