Filling:

1. In a bowl, add cream cheese, mascarpone, vanilla, and lemon. Mix.
2. While mixing, gradually add in sugar.
3. Whip until light and fluffy and set aside.

Crumble:

1. In a blender or food processor, crumble graham crackers and add remaining filling ingredients.
2. Pulse together until the mixture resembles wet sand.

To Assemble:

1. In a round glass container (like a ramekin or mason jar), add 1/2-3/4 inch of crumble filling and pack tightly.
2. Top with 1 inch of filling and refrigerate overnight.
3. When ready to serve, finish it off with a handful of blueberries and enjoy!