Instead of walnuts, you can use almonds or cashews to give the cake a different character.
You can add a bit of cocoa powder or chocolate chips to the mixture to enhance the flavor.
For a gluten-free version, substitute almond flour for the flour.
FAQ:
Can I use other nuts?
Yes, walnuts can be replaced with other nuts, such as hazelnuts or almonds. How long can I store the cake?
In an airtight container, the cake will stay fresh for several days. You can also freeze it for later!
Can I add more sugar?
If you like sweeter cakes, you can increase the amount of sugar, but remember that the nuts themselves are already quite sweet.