For a non-alcoholic version, omit the kirsch and replace the liquid with an equal amount of cherry juice or almond extract mixed with water.
Make sure the cake layers are completely cool before assembling to prevent the whipped cream from melting.
Chocolate curls can be made by chilling a chocolate bar in the freezer for 15 minutes, then using a vegetable peeler to shave thin strips.
Store covered in the refrigerator for up to 3 days.