You’ll Need:1 cup (2 sticks) butter 1 cup superfine sugar 2 cups ground almonds 1 teaspoon vanilla extract 3 eggs Grated zest of 2 oranges (set a few pinches aside for garnish, if desired) Juice of 1 orange 1 cup polenta 1 teaspoon baking powder Pinch of salt Cr?me fra?che