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Heavenly Karpatka Cake

This delightful Polish dessert features two layers of light choux pastry filled with creamy custard, perfect for impressing guests at any gathering.
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Prep Time 30 minutes
Cook Time 30 minutes
Total Time 1 hour 30 minutes
Servings: 8 servings
Course: Dessert, Sweet Treat
Cuisine: European, Polish
Calories: 200
Ingredients Method Notes

Ingredients
  

For the Pastry Layers
  • 1 cup water Essential for the dough; substitute with milk for extra richness.
  • ½ cup unsalted butter Adds richness; melted coconut oil can work, too.
  • 1 cup all-purpose flour Creates structure; gluten-free flour is an option.
  • 4 large eggs Binds the dough; egg replacers can be used.
  • 1 pinch salt Enhances flavors; feel free to experiment with flavored salts.
For the Custard Filling
  • 2 cups whole milk Creates a creamy base; almond or soy milk work for a lighter version.
  • 1 cup granulated sugar Sweetens the custard; honey or maple syrup can substitute but may alter texture.
  • 2 teaspoons vanilla extract Adds depth; consider using fresh vanilla beans.
  • 4 large egg yolks Thickens the custard; extra cornstarch can help bind if needed.
  • ¼ cup cornstarch Creates a silky texture; you can replace it with arrowroot powder.
  • ½ cup unsalted butter (softened) Gives creaminess; use vegan butter for a plant-based option.
For Serving (Optional)
  • to taste powdered sugar for dusting Aesthetic flourish; can omit for a cleaner look.
  • to taste whipped cream or fresh fruit for garnish Personalized touch to each slice.

Method
 

Preparation of Choux Pastry
  1. Prepare the choux pastry by combining water, butter, and salt in a saucepan.
  2. Bring to a boil, then add flour while stirring until a cohesive dough forms.
  3. Allow the dough to cool slightly before incorporating eggs, one at a time, until smooth.
  4. Pipe two layers onto lined baking sheets and bake until golden brown and puffed.
Preparation of Custard Filling
  1. While layers cool, prepare the custard by whisking the milk, sugar, egg yolks, and cornstarch over low heat until thickened.
  2. Blend in softened butter and vanilla extract, and allow it to cool.
Assembly
  1. Dust the top with powdered sugar and slice into generous portions.
  2. Serve chilled or at room temperature, paired with whipped cream or fresh berries for added sweetness and color.

Notes

Store leftovers in an airtight container in the fridge for up to three days. Can freeze the cake before adding powdered sugar or custard for up to three months.