For that, I skipped melted chocolate in favor of cocoa powder. Melted chocolate tends to dry out cake batter, and unless you’re using 100 percent unsweetened chocolate, adding bar chocolate also ...

Let cake layers cool in baking pans on wire racks 10 minutes; remove cakes from baking pans and let cool completely, parchment side down, on racks, 1 hour and 30 minutes to 2 hours.