Quick Lemon Cheesecake (second iteration)

This one was much better than the first one. The really good thing is that the recipe now has completely untransferable units. How much does a packet of Leibniz biscuits weigh? Don't ask me. How large is a tub of whipping cream, or a tube of Milchmaedchen condensed milk? No idea. Thus lives on the spirit of the recipe from my mum that required "one tin of condensed milk". In England tins of condensed milk only came in one size, and were all made by the same company (Carnation). In Germany Leibniz biscuits are a standard which can be reproduced by walking into your nearest shop, which is guaranteed to have a biscuit selection consisting of pretty much nothing else: Leibniz, Leibniz with chocolate, wholemeal Leibniz, own-brand Leibniz, own-brand Leibniz with chocolate etc

So here is the "Schnell schnell schnell lemon cheesecake".

Ingredients

For the base: 1 packet of "Vollkorn Leibniz" biscuits.
100g butter.
Brown sugar.

For the topping: 2 tubes of "Milchmaedchen" sweetened condensed milk.
2 tubs of whipping cream.
Juice of 4 lemons.
Some kind of fruit.

Instructions

Crush the biscuits, work in the butter and add brown sugar until it tastes sweet enough. Tip it into a container and squash it down. Mix the cream, condensed milk and lemon juice together, and tip onto the base. Cool for 2 hours, then put the fruit on the top and serve.