Mille-feuille, the creamy dessert everyone will love.

1 lb puff pastry
1 teaspoon vanilla extract
3 egg yolks
3/4 cup sugar
1/3 cup starch
3 1/4 cups milk
8.5 oz whipped cream

In a saucepan, pour the milk and mix in the sugar, egg yolks, vanilla, and starch. Stir until thickened, then add a spoonful of butter and mix. Let cool.
Cut the dough and bake at 375°F for 25 minutes.
Add the cream to the whipped cream and assemble the cake. Put in the freezer for 2 hours and serve.