### Instructions
#### Making the Apple Filling:
1. In a medium saucepan, combine the sliced apples, granulated sugar, cinnamon, nutmeg, and apple juice (or water).
2. Cook over medium heat, stirring occasionally, until the apples soften slightly, about 5-7 minutes.
3. In a small bowl, whisk together the cornstarch with 1 tablespoon of cold water until smooth. Stir the cornstarch slurry into the apple mixture.
4. Continue to cook, stirring, until the mixture thickens. Remove from heat and let cool completely.
#### Preparing the Cinnamon Roll Crumb Layer:
1. In a medium bowl, combine the crushed graham crackers or cookies with the melted butter. Mix until well combined and the crumbs are moistened.
#### Crafting the Cream Cheese Layer:
1. In a large bowl, using an electric mixer, beat the softened cream cheese, powdered sugar, and vanilla extract until smooth and creamy.
2. In a separate bowl, whip the 1/2 cup of cold heavy cream until stiff peaks form.
3. Gently fold the whipped cream into the cream cheese mixture until just combined. Be careful not to overmix.
#### Assembling the Lasagna:
1. In an 8×8 inch (or similar sized) dish, spread half of the cinnamon roll crumb mixture evenly across the bottom. Press down gently.
2. Carefully spoon and spread half of the cooled apple filling over the crumb layer.
3. Evenly spread half of the cream cheese mixture over the apple filling.
4. Repeat the layers: remaining crumb mixture, remaining apple filling, and finally the remaining cream cheese mixture.
#### Creating the Whipped Topping:
1. In a cold bowl with cold beaters, whip the 1 cup of cold heavy cream with the 1/4 cup powdered sugar and 1/2 teaspoon vanilla extract until stiff peaks form.
2. Spread the whipped topping over the top layer of cream cheese mixture.
#### Chilling and Serving:
1. Cover the dish with plastic wrap and refrigerate for at least 4 hours, or preferably overnight, to allow the flavors to meld and the lasagna to set.
2. Before serving, garnish with extra crushed graham crackers or a drizzle of caramel sauce, if desired. Cut into squares and serve chilled.
### Short Tips
* **Apple Choice:** Use firm, tart apples like Granny Smith, Honeycrisp, or Fuji for the best flavor and texture.
* **Crumb Options:** If you can’t find cinnamon graham crackers, regular graham crackers with 1/2 teaspoon of extra cinnamon added to the crumbs work beautifully. Shortbread cookies are another delicious alternative.
* **Whip it Good:** Ensure your heavy cream and mixing bowl for the whipped topping are very cold for the best results. You can even chill your beaters!
* **Patience is Key:** Don’t rush the chilling process! It’s essential for the lasagna to set properly and for the flavors to fully develop.
* **Make Ahead:** This dessert is perfect for making a day in advance, making your hosting duties even easier.
* **Customize:** Feel free to add a pinch of allspice or ginger to your apple filling for an extra layer of warmth. A sprinkle of chopped pecans or walnuts on top would also be delightful.