🇭🇺 Vanilla Custard Slice (Hungarian Krémes)

🧾 Ingredients:

For the layers:

• 2 sheets puff pastry

For the custard filling:

• 1 liter milk
• 6 egg yolks
• 150 g sugar
• 80 g cornstarch
• 1 tsp vanilla extract

For the meringue layer (optional but traditional):

• 6 egg whites
• 100 g sugar

For topping:

• Powdered sugar