Vanilla Custard Cream Squares

Of course! Here is a comprehensive guide to making Vanilla Custard Cream Squares, a delightful and elegant dessert.

This recipe is for the classic version made with layers of flaky puff pastry and a rich, creamy vanilla custard. It’s sometimes known as a Cremschnitte or Napoleon Slice . I’ve also included a popular variation at the end that uses a different type of pastry, in case you’re looking for an alternative.

The Classic Vanilla Custard Cream Squares (with Puff Pastry)

This dessert features a beautiful contrast between the crisp, buttery puff pastry and the lusciously smooth, velvety custard. It requires some chilling time, so it’s perfect for making ahead.

Ingredients (Serves 9-12)

For the Pastry Layers:

· 2 sheets (about 17.3 oz / 500g total) frozen puff pastry, thawed
· Powdered sugar, for dusting

For the Custard Cream Filling:

· 4 cups (1 liter) whole milk
· 1 ½ cups (300g) granulated sugar
· 1 ¼ cups (160g) all-purpose flour
· 8 large eggs, separated
· 3 teaspoons vanilla extract
· 2 tablespoons dark rum (optional, but traditional for flavor)

For the Whipped Cream Topping:

· 2 cups (480 ml) heavy whipping cream, chilled
· 2 tablespoons powdered sugar

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Instructions

Part 1: Bake the Puff Pastry

1. Preheat Oven: Preheat your oven to 400°F (200°C) . Line two large baking sheets with parchment paper.
2. Prepare Pastry: Place each thawed puff pastry sheet on a prepared baking sheet. Use a fork to prick the pastry all over . This prevents it from puffing up too unevenly.
3. Bake: Bake for 12-15 minutes, or until the pastry is golden brown, puffed, and crisp .
4. Cool: Transfer the baked pastry sheets to a wire rack and let them cool completely .

Part 2: Make the Custard Filling

1. Heat Milk: In a large saucepan, heat 3 cups of the milk over medium heat until it is steaming hot but not boiling .
2. Whisk Egg Yolks: While the milk heats, in a large bowl, whisk together the egg yolks and granulated sugar until the mixture is pale and fluffy . Whisk in the flour, vanilla extract, optional rum, and the remaining 1 cup of milk until the mixture is smooth .
3. Temper the Eggs: Slowly pour about 1 cup of the hot milk into the egg yolk mixture, whisking constantly. This gradually raises the temperature of the eggs so they don’t scramble .
4. Thicken Custard: Pour the tempered egg mixture back into the saucepan with the rest of the hot milk. Place the saucepan back over medium heat and cook, stirring constantly with a whisk, until the mixture thickens and begins to bubble . Remove from heat.
5. Incorporate Egg Whites: In a separate, clean bowl, use an electric mixer to beat the egg whites until stiff peaks form . Gently fold the beaten egg whites into the hot custard until just combined. This step makes the custard incredibly light and airy .

Part 3: Assemble the Dessert

1. First Layer: Place one of the cooled puff pastry sheets in the bottom of a 9×13-inch baking dish .
2. Add Custard: Pour the custard over the pastry sheet and spread it evenly with a spatula .
3. Initial Chill: Place the dish in the refrigerator and chill for 1-2 hours, or until the custard is cool and firm .

Part 4: Add Whipped Cream and Top Layer

1. Whip the Cream: In a large bowl, beat the chilled heavy cream and 2 tablespoons of powdered sugar with an electric mixer until stiff peaks form .
2. Add Cream Layer: Spread the whipped cream evenly over the chilled custard layer .
3. Prepare Top Pastry: Take the second cooled puff pastry sheet. For easier serving, you can cut it into 12-15 squares now . Carefully place the whole sheet (or the pre-cut squares) on top of the whipped cream layer .
4. Final Chill: Cover and return the dish to the refrigerator to chill for at least another 2 hours, or up to overnight. This allows the dessert to set completely, making it easier to cut clean squares .

Part 5: Serve

1. Dust and Slice: Before serving, dust the top generously with powdered sugar . If you used a whole pastry sheet on top, use a sharp, serrated knife to carefully cut the dessert into squares. Wiping the knife clean between cuts helps achieve neat, bakery-style slices .
2. Serve Chilled: Serve these delightful squares cold.

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Tips for the Perfect Vanilla Custard Cream Squares

· Keep Pastry Cold: Puff pastry works best when cold. If it becomes too warm while you’re working, pop it back in the fridge for a few minutes before baking .
· Prevent Pastry from Puffing Too Much: Pricking the pastry sheets with a fork before baking (called “docking”) allows steam to escape and helps the layers bake into a flatter, more even sheet that’s perfect for layering .
· Stir Constantly: When making the custard on the stove, you must stir it continuously to prevent lumps and scorching on the bottom of the pan .
· Chill Time is Crucial: Don’t rush the chilling process. The dessert needs ample time to firm up so it holds its shape when sliced. Overnight chilling is highly recommended for the cleanest cuts .
· Smooth Custard: If your finished custard has a few small lumps, you can press it through a fine-mesh sieve before chilling for an ultra-smooth texture .

A Popular Variation: Choux Pastry Version (“Karpatka”)

It’s worth noting that “Vanilla Custard Cream Squares” can also refer to a different, equally delicious dessert, sometimes known as a Karpatka . Instead of puff pastry, this version uses two layers of choux pastry (the same dough used for cream puffs) that puffs up into an irregular, bumpy top, meant to resemble the mountain range it’s named after . The filling is a similar rich vanilla custard. If you’re looking for a slightly different texture with a softer, cream-puff-like pastry, this is a fantastic option to explore.

Enjoy making (and eating!) your delicious Vanilla Custard Cream Squares