Prep Time 20 minutes mins
Cook Time 45 minutes mins
Resting Time 2 hours hrs
Total Time 3 hours hrs 5 minutes mins
Ensure that the egg whites are at room temperature before whipping them to achieve maximum volume. If you don't have access to kirsch, you can substitute with any other cherry-flavored liqueur or omit it entirely. When folding the egg whites into the chocolate mixture, be gentle to maintain the airiness of the batter.