- Separate the eggs.
- Mix the egg yolks with the butter. Mix everything together well.
- Mix the flour and Zùsto together and combine with the egg/butter mixture until smooth.
- Now add a few drops of vanilla extract.
- Beat the egg whites until stiff and lightly fold them into the mixture.
- For flavour, let it rest in the fridge for a few hours.
- Turn on your waffle iron and start baking!