Preheat oven to 350 degrees. Butter and flour two 9 inch round cake pans and line bottom with a parchment round. Set aside.
In a stand up mixer or large bowl with an electric mixer, cream together the butter and sugar until well combined. Add the ricotta and blend until light and fluffy, about 5 minutes. Mix in the eggs, one at a time, incorporating well. Mix in the Limoncello, lemon zest, and vanilla.
In a seperate bowl, whisk the flour, baking powder, baking soda, and salt. Add the dry ingredients to the wet in two batches, until just combined.
Pour the batter into prepared pans and smooth as needed. Bake 30-35 minutes, or until the cake is set and a toothpick inserted comes out clean. Let cool in pan at least 10 minutes before turning out onto a wire rack to cool completely before frosting.
To make the Limoncello Cream Cheese Frosting, in a large bowl cream together the butter and cream cheese. Add in the powdered sugar, Limoncello, and zest. Mix until well combined. Place one layer of the cooled cake on pedestal or cake plate and spread on about a cup of frosting. Place on the top layer of the cake and spread the remaining frosting all over the cake. Sprinkle on candied lemon peel if using.
This cake can be made up to a two days in advance. Just store covered in the refrigerator.
Recipe courtesy of This Delicious House. Sign up for more recipes today at https://thisdelicioushouse.com