Kremówka (Polish Cream Custard Pastry)

Ingredients

• 1 sheet (14 oz) frozen all-butter puff pastry
• 1.5 cups whole milk
• 1 cup heavy cream
• 4 count large egg yolks
• ½ cup granulated sugar
• 3 tablespoons cornstarch
• 1 teaspoon vanilla extract
• 2 tablespoons unsalted butter
• 3 tablespoons powdered sugar

Instructions

1. 1

   Preheat your oven to 400°F. Line a large baking sheet with parchment paper. Remove the frozen puff pastry sheet from its package and let it rest at room temperature for 5 minutes until pliable enough to unfold without cracking.

2. 2

   Carefully unfold the pastry sheet and lay it flat on the prepared baking sheet. If it tears slightly, just press it back together — it will seal as it bakes. Prick the entire surface with a fork about 20 times, leaving a 1/2-inch border unpierced around the edges. This prevents the center from puffing up too much.

3. 3

   Bake the pastry for 12-15 minutes, until it's puffed and deep golden brown on top. You want a crispy, well-colored crust. Remove from the oven and set aside to cool completely — this takes about 10 minutes. Once cool enough to handle, use a serrated knife to carefully slice the pastry in half horizontally, creating two thin sheets. Set aside.

4. 4

   While the pastry cools, pour 1.5 cups of whole milk into a medium saucepan and set it over medium heat. Stir occasionally until tiny bubbles form around the edges and steam wisps rise from the surface — do not let it boil. This takes about 5-7 minutes.

5. 5

   In a medium bowl, whisk together 4 large egg yolks, 0.5 cup of granulated sugar, and 3 tablespoons of cornstarch until smooth and pale, about 2 minutes of whisking. The cornstarch prevents lumps and thickens the custard.

6. 6

   Slowly pour the hot milk into the egg mixture while whisking constantly — this tempers the eggs so they cook gently without scrambling. Keep whisking as you pour until all the milk is incorporated.

7. 7

   Return the entire mixture to the saucepan and set it over medium heat. Whisk constantly for 3-4 minutes until the custard thickens noticeably and coats the back of a spoon — when you drag your finger across the spoon, it should leave a clear trail. This means the cornstarch has gelatinized and the egg yolks have cooked through.

8. 8

   Remove from heat and stir in 1 teaspoon of vanilla extract and 2 tablespoons of unsalted butter, cut into small pieces. The butter adds richness and shine. Stir until completely melted and smooth. Pour the custard into a shallow bowl and press plastic wrap directly onto the surface to prevent a skin from forming. Let it cool to room temperature, about 15-20 minutes.

9. 9

   Once the custard has cooled, pour 1 cup of heavy cream into a clean bowl. Using an electric mixer on medium-high speed, whip the cream for 2-3 minutes until stiff peaks form — the cream should look thick, glossy, and hold its shape. Be careful not to overbeat or you'll make butter.

10. 10

    Gently fold the whipped cream into the cooled custard in two additions, using a rubber spatula. Fold by scooping from the bottom of the bowl and folding over the top, rotating the bowl as you work. Stop when no white streaks remain — this keeps the filling airy.

11. 11

    Place the bottom pastry sheet on a serving platter. Spread the cream custard mixture evenly over it in an even layer, using an offset spatula. Leave about a 1/2-inch border around the edges.

12. 12

    Carefully position the top pastry sheet over the filling, centering it so the edges align. If the pastry cracks slightly, just press it gently back together.

13. 13

    Dust the entire top generously with 3 tablespoons of powdered sugar, using a fine-mesh sieve for an even, elegant coating. This creates the classic Polish kremówka presentation.

14. 14

    Let the assembled kremówka rest at room temperature for 5 minutes before slicing. Using a sharp, serrated knife dipped in hot water and wiped dry between cuts, slice into 8 equal pieces. Work confidently — hesitant sawing will crush the pastry. Serve immediately or refrigerate for up to 4 hours and serve chilled.

Tools you’ll need

• large baking sheet
• parchment paper
• fork
• serrated knife
• medium saucepan
• medium bowl
• whisk
• rubber spatula
• electric mixer
• offset spatula
• fine-mesh sieve
• instant-read thermometer (optional, for milk temperature)

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