1. Make the cake.
2. Make the crumb.
3. Make the cheesecake.
4. Make the filling.
Make the cake:
Preheat the oven to 350F. Grease a 9x13 pan well (I used a butter wrapper with a little additional butter. Line with greased parchment paper if you’re not confident in your abilities to remove cake from a greased pan).
In a medium bowl, whisk together the flour, baking powder, salt and cinnamon. Set aside.
Combine the browned butter and the sugars and beat with an electric mixer until well-combined. Scrape down the sides of the bowl, add your eggs and mix on medium-high for another 2-3 minutes. Scrape down the sides of the bowl again.
With the mixer on low speed, slowly stream in the buttermilk, oil, and vanilla. Beat for 2-3 minutes, until the mixture is completely homogenous. This is important to keep your cake from being bumpy rather than smooth. Beat until there are no streaks or uneven patches anywhere in the batter (this can take several minutes). If in doubt, keep going. Scrape down the sides and bottom of the bowl again.
With the mixer on low speed, add the dry ingredients and mix for 45 to 60 seconds, just until the mixture comes together. I like to stop before everything is perfectly incorporated and finish off the mixing with a gentle hand to ensure the batter doesn’t get over mixed.
Pour the batter into your prepared pan, using a rubber spatula to spread the batter evenly. Bake for 20-25 minutes, checking at the 20 minute mark for doneness. The cake should rise and puff slightly and should spring back under your finger when tested. It’s done when the center no longer jiggles.
Remove your cake from the oven and place the entire pan onto a wire rack to cool completely.
Bake the crumb:
Keep your oven at 350F. Line a cookie sheet with parchment paper.
Whisk together the flour, sugar, and salt in a large bowl until evenly distributed.
Add the melted butter and water and stir using a small wooden spoon or spatula to incorporate the wet with the dry. Stir until everything comes together, making sure to incorporate all the dry ingredients—you want a bunch of mostly uniform pebble-sized chunks. If there are too many crumbs the size of sand with just a few larger pebbles, the crumbs will bake unevenly and scorch in spots. Add more water, a teaspoon at a time, until the mixture comes together into pea-size crumbles clustering together.
Spread the clusters into the middle of your prepared sheet pan and use your spoon or spatula to spread them out evenly into small clusters, breaking them up as you go. Bake for 15-20 minutes. They should be golden and slightly moist when you take them out; they will harden as they cool. Remove from the oven and place the pan on a wire rack to cool completely.
Store in an airtight container for up to 1 week, or in the fridge or freezer for up to 1 month.
Bake the liquid cheesecake:
Turn your oven down to 300F. Grease an 8×8 glass baking dish.
For the healthy cheesecake: Combine all ingredients in a high-power blender and blend until very smooth with no chunks. Pour into the prepared pan and bake for about 20 minutes. It should be firm and set on the outside with a slight jiggle in the middle.
For the full-fat cheesecake: In a large bowl, beat your cream cheese with an electric mixer for two minutes until creamy and soft. Scrape down the sides of the bowl using a rubber spatula, add the sugar, and mix for 2 minutes until the sugar has dissolved into the cream cheese and mixture no longer looks grainy.
Whisk together the cornstarch and salt in a medium bowl. Stream in the milk, whisking as you pour, making sure your cornstarch doesn’t lump. Add your egg and whisk again until your slurry is homogenous.
With your mixer on low speed, stream in the egg slurry and beat for 3-4 minutes until your mixture is smooth and loose. Scrape down the sides of the bowl again, checking for any unincorporated ingredients.
Pour the cheesecake batter into your prepared pan, place in the oven, and bake for about 15 minutes. When it’s done, your cheesecake filling should be firmer and more set towards the outside and still a big jiggly in the center. If it seems too jiggly, give it another 5 minutes. Don’t let it begin to brown or poof up; that’s bordering on overdone.
Remove from the oven and let cool completely; like any cheesecake or curd tart, it will continue to bake itself and set while cooling.
When fully cooled, mash it up into a spreadable consistency.
Store in the refrigerator for up to 1 week.
Make your apple pie filling:
Squeeze the lemon into a bowl of water big enough to hold and cover your apple slices.
Peel your apples and cut them in half, removing the core and seeds. The original recipe calls for you to quarter the apples and cut each quarter into 12 pieces. I say slice each half with 5 cuts lengthwise and 6 cuts width-wise so that you have 48 chunks altogether. Drop your pieces in the lemon water as you slice.
Once you’re ready to cook, drain the water from the apples and discard the lemon water. In a medium saucepan, combine the apples with the butter, brown sugar, cinnamon and salt. Bring to a boil over medium heat, stirring gently to coat and cook evenly. Reduce the heat to low and simmer for 3-6 minutes, so the apples release their liquid and soften, but not so much that they get mushy. My "sauce" almost disappeared by the time my apples were soft, but as long as you have syrupy apples, all is good. Remove pan from heat and let cool completely.
Store in the refrigerator for up to 1 week.
Make your cider soak (do this right before assembly):
Whisk together the cider, sugar and cinnamon.
For step-by-step photos, check out this post
. The most important thing is to make sure everything is fully cooled/room temperature before starting. Chilled (but not frozen) cake is easiest to work with.
Use a 6" cake ring to stamp out two full circle of cake for the two layers. I only have a 6" cake pan, so I press that down lightly into the cake for a guide and use a knife to cut out the circles.
Place your 6" cake ring or pan on a cutting board or plate covered with a piece of wax paper. Line the inside of the cake ring with acetate or a sturdy piece of paper (such as a heavy-duty envelope or gift bag) lined with wax paper. Tape paper in place if necessary to form a ring that adheres closely to the shape of the cake ring.
Take the cake remnants left from stamping out the two circles of cake and drop them into the bottom of the cake ring, pressing into a thick, even layer with your hands.
Soak the cake with 1/2 of the cider soak using a pastry brush, or by carefully spooning the cider evenly over the cake layer.
Spread 1/3 of the cheesecake evenly over the top.
Srinkle 1/3 of the pie crumbs evenly over the top.
Spoon 1/2 of the apple pie filling evenly over the top.
Drop a full ring of cake on top of the filling and repeat the soak, 1/3 of the cheesecake, 1/3 of the crumbs, and the rest of the filling.
Slide the last ring of cake on top and finish with the last 1/3 of the cheesecake and pie crumbs. Cover with wax paper and freeze for at least 12 hours.
Remove cake from freezer 2-3 hours before serving to allow it to defrost. Release the cake from the ring by pushing it up and out of the ring (you may end up wearing the ring on your arm while balancing the cake on your hand) or by carefully wrapping the wax paper around the top, inverting the cake to pull off the ring, and then inverting the cake back on a plate right-side up.
Phew! Slice that sucker into wedges and eat that well-deserved cake.