In the mixing bowl, add crumbs and sugar. Mix with the spatula.
Add melted butter and mix again.
Using an ice cream scoop or spoon, pour the mixture into the cube container and press with the spatula to the bottom and the sides of the container.
Refrigerate the crust while making the cheesecake filling.
How to Make Cheesecake Filling
In the mixing bowl of a stand mixer, add cream cheese and sour cream. Using the pedal attachment, beat on low for a few minutes.
Add powdered sugar and beat again for about 2 minutes.
Add lemon juice and lemon zest. Do not forget to scrape the sides of the bowl in between. Set aside.
In another mixing bowl, whip cold heavy cream.
Add half of the whipped cream to the cream cheese mixture, and fold with a spatula to combine. Once the first half is incorporated, add the remaining whipped cream and fold with the spatula.
Transfer cheesecake filling into a pastry bag and fill the cube containers with the crust. Use the spatula to smooth out the top. Make sure to leave space for the jello and decor.
Refrigerate the cube cheesecakes for a few hours.
How to Assemble Cheesecake
Prepare jello according instructions on the box.
Pour jello over cheesecake and dust with the freeze-dried raspberries.
Place the cover in the container and refrigerate.
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Notes
Use soft cream cheese and cold heavy cream for a smooth filling.