Prepare the Custard:
Begin by heating half of the milk with the lemon peel and vanilla essence in a pot. Avoid boiling; just let it steep for flavor.
Mix the Flour:
In a separate bowl, dissolve the flour in the other half of the milk. Beat the egg yolks and sugar in another bowl until creamy and pale.
Combine:
Mix the yolk mixture with the milk and flour, letting it sit for 5 minutes.
Add Hot Milk:
Gradually incorporate the hot milk (discarding the lemon peel), along with the butter, and stir continuously over low heat until the mixture thickens into a custard.
Cool:
Transfer the custard into a bowl, cover the surface with plastic wrap, and refrigerate for at least 3 hours.
Assemble the Dessert:
Crush vanilla cookies and layer them at the bottom of your serving glass.
Follow with a layer of custard and then a generous distribution of strawberries. Repeat the layering process until you reach the top.
Top & Serve:
Finish with a dollop of chantilly cream on top and a few extra strawberries for a stunning finish!