Classic Vanilla Custard Slices Recipe – A Creamy Bakery-Style Dessert You Can Make at Home
If you’ve ever wandered past a bakery window and stopped to admire those perfectly layered vanilla custard slices with glossy icing and flaky pastry, you’re in for a treat. This Vanilla Custard Slices Recipe brings the indulgent flavor and creamy texture of the beloved classic right to your kitchen. With buttery puff pastry, smooth vanilla custard, and a simple sweet glaze, this dessert is a showstopper that’s surprisingly easy to make.
What Are Vanilla Custard Slices?
Vanilla custard slices, also known as “Napoleons” or “Mille-Feuille,” are made of crisp puff pastry filled with thick, creamy vanilla custard and topped with a thin layer of icing. Each bite delivers a balance of textures—crunchy, creamy, and melt-in-your-mouth soft. Though they look fancy, they’re simple to prepare using everyday ingredients, making them perfect for home bakers who want an elegant yet comforting dessert.
Ingredients You’ll Need
For the pastry layers:
2 sheets frozen puff pastry, thawed
1 egg, lightly beaten (for brushing)
For the vanilla custard filling:
2 cups whole milk
1/2 cup heavy cream
1/2 cup granulated sugar
1/4 cup cornstarch
4 large egg yolks
2 tablespoons unsalted butter
2 teaspoons pure vanilla extract
Pinch of salt
For the icing:
1 cup powdered sugar
2 tablespoons milk (or as needed for consistency)
1/2 teaspoon vanilla extract
Optional: melted chocolate for feathering design
How to Make Vanilla Custard Slices
Step 1: Prepare the Puff Pastry
Preheat your oven to 400°F (200°C). Line two baking sheets with parchment paper. Place the puff pastry sheets on the trays and prick them all over with a fork to prevent excessive puffing. Brush lightly with beaten egg for golden color. Place another sheet of parchment and a baking tray on top of each pastry sheet to keep them flat. Bake for 12–15 minutes or until golden brown and crisp. Remove from oven and let cool completely.
Step 2: Make the Custard Filling
In a medium saucepan, heat milk, cream, and half the sugar over medium heat until it begins to steam but not boil. In a separate bowl, whisk together egg yolks, remaining sugar, cornstarch, and salt until smooth. Slowly pour the hot milk mixture into the yolk mixture, whisking constantly to prevent curdling. Return the mixture to the saucepan and cook over medium heat, stirring continuously until it thickens into a smooth custard. Remove from heat, add butter and vanilla extract, and stir until combined. Cover the surface with plastic wrap to prevent a skin from forming, and let cool completely.
Step 3: Assemble the Slices
Place one baked puff pastry sheet on a flat surface or in a baking pan lined with parchment. Spread the cooled custard evenly over the pastry. Top with the second puff pastry sheet and press gently. Refrigerate for at least 2 hours, or until the custard is set and firm enough to slice neatly.
Step 4: Prepare the Icing
In a small bowl, whisk together powdered sugar, milk, and vanilla extract until smooth. The icing should be thick but pourable. Spread it evenly over the top layer of puff pastry. If desired, drizzle melted chocolate in horizontal lines and drag a toothpick through them to create a feathered pattern.
Step 5: Slice and Serve
Once the icing sets, use a sharp knife to cut the custard slice into squares or rectangles. For cleaner cuts, dip the knife in hot water between slices. Serve chilled and enjoy the creamy layers with crisp pastry in every bite.
Tips for Perfect Vanilla Custard Slices
- For an ultra-smooth custard, strain it through a fine-mesh sieve before cooling.
- To prevent soggy pastry, make sure the custard is completely cooled before layering.
- Use a sharp serrated knife to cut the slices to avoid squishing the layers.
- You can make these a day ahead and refrigerate overnight for even cleaner layers.
Flavor Variations to Try
- Strawberry Custard Slices: Add a layer of fresh sliced strawberries between the custard and top pastry.
- Chocolate Custard Slices: Replace 2 tablespoons of cornstarch with cocoa powder and add melted chocolate to the custard for a rich twist.
- Coffee Custard Slices: Stir in a teaspoon of instant espresso powder for a café-style flavor.
- Lemon Custard Slices: Add a teaspoon of lemon zest and replace vanilla with lemon extract for a bright, citrusy note.
How to Store Custard Slices
Store the slices in an airtight container in the refrigerator for up to 3 days. Keep in mind that the pastry may soften slightly over time due to the custard, but the flavor remains delightful. For best texture, serve them within 24 hours of assembly.
Frequently Asked Questions
Can I use store-bought custard?
Yes, but homemade custard provides a much richer, creamier texture and better flavor. If you’re short on time, use high-quality vanilla custard from the store and chill it before layering.
Can I freeze custard slices?
Freezing is not recommended because the custard may separate when thawed, and the pastry can lose its crispness. It’s best to enjoy them fresh or within a few days.
How do bakeries get perfect layers?
The secret lies in baking the pastry flat and chilling the custard fully before layering. Patience and precision make all the difference.
Can I make these dairy-free?
Yes! Use almond milk or coconut milk for the custard and dairy-free puff pastry for a lighter, plant-based version.
Why You’ll Love This Recipe
Vanilla custard slices are more than just a dessert—they’re an experience. Each layer contributes to the perfect balance: crisp pastry, silky custard, and sweet icing that melts in your mouth. They look elegant enough for a special occasion yet simple enough for weekend baking. Plus, the aroma of vanilla custard filling your kitchen is pure nostalgia.
Serving Suggestions
Serve vanilla custard slices with a dusting of powdered sugar or a few fresh berries on the side. Pair them with coffee or tea for an afternoon treat, or serve after dinner as a light, satisfying dessert.
Conclusion
This Vanilla Custard Slices Recipe is a bakery-quality dessert you can make easily at home. With layers of flaky puff pastry, luscious vanilla custard, and a glossy icing finish, it’s pure comfort and elegance combined. Once you master this recipe, it’ll become your go-to for impressing guests or treating yourself to something truly special. Every bite offers that perfect mix of crunch, cream, and sweetness—a dessert worth savoring anytime.
Keep following for more delicious homemade desserts and timeless classics that never fail to impress!




