Preheat the oven to 350 °F / 180 ° C.
Using a food processor or hand mixer, whip the whole eggs with sugar until light and fluffy.
Next, to the egg mixture, add the oil and water and mix well.
Add in the shifted 00 flour, pistachio flour, ginger, lemon peel, baking powder and mix well.
Grease and flour a plum cake baking mold or non stick long bread loaf pan.
Using a spatula, gently fold in the mixture and bake in the oven for about 35 to 40 minutes.
Using a toothpick, check to see if your cake is ready. Pierce the cake with a toothpick and if it comes out clean, the cake is ready.
Turn off the oven and let the cake rest inside the oven for 10 min with an open oven door.
Remove the cake from the oven and let it cool completely for about 20 to 40 minutes.
Once cool, unmold the cake and decorate or garnish it with crushed pistachios.
Serve and enjoy. Buon Appetito!