Ingredients Castagnole: 250g of 00 flour 2 medium eggs 80g of sugar 8g of baking powder lemon zest 1 teaspoon vanilla extract 1 pinch of salt 2 tablespoons of rum Custard: 250g of milk 60g of sugar 2 egg yolks 20g of corn starch lemon zest 1 teaspoon of vanilla extract