Crumble the biscuits in a freezer bag with a rolling pin and then knead with the butter. Now distribute the biscuit mixture in a 26 mm springform pan and press firmly.
In a bowl, whisk the remaining 5 ingredients all at once and place on the bottom.
Now bake the cake in the preheated oven at 160 ° C for approx. 50 minutes!
PS: Since all ovens have their own temperature, I ask you to look into the oven from time to time at the end of the baking time and do a sample!