Flaky sea salt This ingredient shopping module is created and maintained by a third party, and imported onto this page. You may be able to find more information about this and similar content on their web site. Directions Grease a 9-by-13 inch baking dish with cooking spray. Line baking dish with parchment paper, leaving a 2-inch overhang on all sides. In a medium microwave safe bowl, microwave the chocolate chips until just melted, about 2 minute 30 seconds. Stir until smooth. Pour all but ;¼ cup of the melted chocolate into the prepared baking dish and spread into an even layer with an offset spatula.