Preheat the oven to 350°. Butter a deep, 9-inch round cake pan. In a bowl, whisk the cake flour, baking powder and salt.

In another bowl, beat the ricotta, 1 1/2 sticks of butter and 1 1/2 cups of the sugar at medium-high speed until smooth. Beat in the eggs one at a time until just incorporated, then beat in the amaretto, vanilla and orange zest.

Beat in the dry ingredients in 3 batches just until incorporated.Scrape the batter into the prepared pan and bake for 50 minutes, until a toothpick inserted in the center comes out with a few crumbs. Transfer to a rack to cool for 20 minutes; unmold and let cool completely.

In a bowl, toss the strawberries with the Prosecco and remaining 2 tablespoons of sugar and let stand at room temperature until juicy, about 30 minutes.Dust the pound cake with confectioners sugar. Cut into wedges and serve with the strawberries.