Put the eggs and sugar in the bowl, whisk (without using the butterfly): 3 min. speed 4, the mixture should be frothy and swollen.
Add the ricotta, oil, lemon peel and limoncello, mix: 1 min. speed 3.
Finally, add the flour, starch and baking powder, mix: 1 min. speed 4.
At this point, pour the mixture obtained into a 22 cm mold previously lined with parchment paper.
Bake in a preheated oven at 180°C for about 30-35 minutes, always do the toothpick test.
Allow to cool completely and serve sprinkled with icing sugar and lemon slices... Buon appetito!
As an alternative to the 22 cm mold, you can use a 24 cm one, the cake will be a little shorter but still tasty.
The cake can be kept for a few days closed in an airtight container.
*For those who are intolerant to dairy products, it is necessary to replace the classic ricotta with the lactose-free one.