Separate the egg yolks from whites very carefully.
In a bowl, add egg yolks and then beat them with a hand held mixer. While beating, add in condensed milk and then pour in lemon juice.
Put the filling to chill in the refrigerator.
Biscuit Base
In a food processor, add Maria cookies and softened butter. Beat until you get cookie powder.
Pour this dough into a 8-inch cake pan and press it down firmly with the back of a spoon to flatten
Take the filling out of the refrigerator and pour it on top of the biscuit base.
Meringue
Beat egg whites on medium speed until soft peaks form, then add in sugar little by little beat on high speed. until stiff peaks form.
Assembly
Take the filling out of the refrigerator and pour it on top of the biscuit base.
Load up piping bag with meringue.
Decorate the cake with the meringue, with the tips facing up, so that the cake looks pretty.
Once the cake is decorated, put it in the oven. Wait for about 10 minutes meringue tips to brown.
To serve it you have to wait until the filling is more set; therefore, allow it to cool to room temperature or put it directly to chill in the refrigerator.
When the cake is cool and set, unmold it…. Et voilà! You have for dessert a delicious lemon meringue pie!