For the base, first chop up the biscuits and mix with the butter. Pour into a size 26 springform pan and form an edge of about 3 cm. Pre-bake in a preheated oven at 175 ° C for about 8 minutes.
In the meantime, for the filling, beat the egg yolks until they are light yellow. Stir in the sweetened condensed milk and finally stir in the lime juice briefly. Bake at 175 ° C for another 20-25 minutes.
Leave to set in the refrigerator for about 3 hours and serve with cream if necessary.