Cream together the butter and ricotta cheese. Add the sugar and beat until light and fluffy.

Add the eggs one at at time scraping the bowl after each one is added.

Add the orange zest, vanilla, and Amaretto.

Mix the cake flour, baking powder and salt until just combined.

Pour the batter into a parchment lined loaf pan that has been coated with cooking spray. Bake in a preheated 350 degree oven for 45 to 50 minutes.

Let cool in the pan for 10 minutes. Then transfer to a cooling rack and cool completely. Dust with powdered sugar.

Slice and serve with whipped cream and fresh berries.