Step 1

Preheat the oven to 325°F and set an oven rack in the middle position. Spray a 9-inch springform pan with nonstick cooking spray; dust it evenly with flour and tap out any excess.

Step 2

To make the crust: place the almonds, flour, sugar and salt in the bowl of a food processor fitted with the blade attachment. Process until the nuts are finely chopped and the mixture looks sandy. In a small bowl, whisk together the egg yolk, cooled melted butter and vanilla. Add the liquid mixture to the nut mixture and pulse several times until the ingredients are well combined, moistened and crumbly. Dump the mixture into the prepared pan and, using your fingers or the bottom of a measuring cup, press into an even layer. Place the pan in the freezer for 10 minutes (or the refrigerator for 15-20 minutes) to chill; then bake for 10-15 minutes, until the crust is lightly golden. Let cool on a wire rack.

Step 3

Meanwhile, make the filling: Combine the cream cheese, sugar and salt in the bowl of a food processor fitted with the blade attachment. Process until soft and creamy, about 1 minute. Add the ricotta and process until the mixture is smooth and light, another 2 minutes. Add the eggs, one at a time, processing for 5-10 seconds between each addition. Add the vanilla, amaretto, cornstarch and orange zest and process until mixture is just combined (do not overmix).

Step 4

Pour the filling into the crust, smoothing the top with a spatula. Bake the cheesecake for about 50 minutes, until the top is lightly golden, the edges are set and the center is quite jiggly but not totally liquid (it will continue to cook as it cools). Carefully remove the cheesecake from the oven and allow it to cool completely on a wire rack. It will sink a bit -- that's okay. Once cool, If necessary, run a thin-bladed knife around the edge of the cake to make sure it's not sticking to the sides (which can cause cracks as it cools), then cover with plastic wrap and transfer to the refrigerator to cool for at least 8 hours or overnight.

Step 5

For the topping: After the cake has chilled, spread the raspberry jam evenly over the top of the cheesecake, leaving a 3/4-inch border around the edge of the cake (essentially, the jam goes on the sunken part of the cake). Place the raspberries evenly over top. Using a fine sieve, dust the top of the cake with Confectioners' sugar. Cover and refrigerate until ready to serve.

Step 6

For serving: Remove the sides of the springform pan. Serve the cheesecake right from the base of the pan; or, to transfer it to a serving platter, run a long, thin spatula between the crust and the pan bottom, and then use two large spatulas to carefully transfer the cheesecake to a serving dish. Slice with a sharp knife, wiping the knife clean between slices. The cake keeps well for several days.

Step 7

Freezer-Friendly Instructions: The cheesecake may also be frozen without the topping for up to 3 months. To freeze: place the cake in the freezer briefly, unwrapped, to firm it up. Then double-wrap it tightly with aluminum foil or plastic freezer wrap, or place it in heavy-duty freezer bag. Thaw in the refrigerator the night before you plan to eat it. Prepare the topping prior to serving the cheesecake.