Crush up the graham crackers and stir in the melted butter.
Add the crust mixture to the bottom of the jars.
Combine the cream cheese with marshmallow cream, vanilla, lemon juice and condensed milk. Add in a few marshmallows and stir.
Pur the cheesecake mixture over the top of the crumbs in the jar.
Warm up the cream and add the chocolate to melt. Stir until it's combined. Pour the mixture over the top of the other layers in the jar, add marshmallows and whipped cream as toppings, and enjoy.