For an extra layer of flavor, try toasting the ground walnuts lightly before adding them to the egg whites. If you don't have superfine sugar, you can pulse regular granulated sugar in a food processor until it reaches a finer consistency. The filling can be made ahead of time and stored in the refrigerator for up to 24 hours. Just bring it to room temperature before using.
Conor Morissette
Jun 19, 2025I added a pinch of cinnamon to the filling and it was delicious!
Sid Torpwillms
May 10, 2025This filling is so much better than the one I usually make! The egg whites make it so light and airy.
Zoie Kuvalis
Mar 28, 2025The superfine sugar really makes a difference. The filling is so smooth and not grainy at all.