Grind 7 oz of cookies (whichever you prefer), 3 oz of melted butter, and put on the base of a baking pan.
Mix 1 can of condensed milk and 2 natural yogurts (if you prefer a sweeter taste, add a couple tablespoons of powdered sugar), mix and pour over the crust.
Bake in the preheated oven at 360°F for 20 minutes. Take out and allow to cool. Even if you don’t believe it, it sets perfectly. Put strawberries, raspberries, blueberries or whatever you prefer. And voilà!