Place chocolate chips in a blender. In a small pot, bring cream to a boil over medium-high heat. Pour over chocolate chips and let sit, undisturbed, for 30 seconds. Blend on medium speed until smooth and well-combined, about 1 minute.
Add butter and continue to blend until slightly cooled, about 2 minutes. Add eggs, vanilla, and a large pinch of salt. Blend on medium-high speed until mixture is frothy and light, about 2 minutes. Transfer to six 8-ounce ramekins and chill until firm, about 3 hours. Serve chilled, topped with whipped cream and raspberries.