Creamy Vanilla Slice with Flaky Puff Pastry
If you’re looking for a dessert that feels like a hug in every bite, then this Creamy Vanilla Slice with Flaky Puff Pastry is just what you need! This delightful treat is perfect for any occasion—whether you’re hosting a family gathering or simply want to indulge yourself after a long day. The combination of flaky pastry and velvety custard creates such a wonderful balance that it’s hard to resist going back for seconds (or thirds!).
What I love most about this recipe is its ability to impress without being overly complicated. It’s one of those desserts that looks fancy but is surprisingly easy to make. Trust me; once you try this creamy vanilla slice, it will quickly become a go-to in your dessert rotation!
Why You’ll Love This Recipe
- Easy to prepare: With just a few simple steps, you can create a stunning dessert that doesn’t take all day.
- Family-friendly appeal: Kids and adults alike will fall in love with the creamy texture and sweet vanilla flavor.
- Make-ahead convenience: This dessert needs time to chill, making it perfect for prepping ahead of time for gatherings.
- Customizable options: You can easily tweak the flavors or toppings to suit your taste.

Ingredients You’ll Need
Let’s gather some simple, wholesome ingredients to make this delicious Creamy Vanilla Slice with Flaky Puff Pastry. You probably already have many of these items in your kitchen!
For the Pastry and Custard
- 2 (8½ oz; 490g) sheets of puff pastry, (thawed)
- ⅔ cup (133g) granulated sugar
- ½ cup (60g) cornstarch
- ¼ tsp kosher salt
- 3½ cups (795g; 830ml) whole milk, (warm)
- 6 large egg yolks, (room temperature)
- 1 vanilla bean, (cut in half, seeds scraped out, or 2 tsp vanilla bean paste)
- 4 Tbsp (60g) unsalted butter, (cold, cubed)
- Powdered sugar, (for dusting)
Variations
This recipe is quite versatile, so feel free to get creative! Here are some fun variations you can try:
- Add fruit: Layer fresh berries or sliced bananas between the custard and pastry for an added fruity twist.
- Experiment with flavors: Swap out the vanilla for almond or lemon extract to give it a different flavor profile.
- Top with chocolate: Drizzle melted dark chocolate over the top before slicing for a decadent touch.
How to Make Creamy Vanilla Slice with Flaky Puff Pastry
Step 1: Prepare the Puff Pastry
Preheat your oven to 400°F (200°C). Line two baking trays with parchment paper. Roll out your puff pastry sheets slightly to about 9×9 inches and prick all over with a fork. This helps prevent puffing during baking. Place the pastries on the trays and cover them with another sheet of parchment and a second tray to weigh them down. If you don’t have enough pans, just repeat as needed!
Step 2: Bake the Puff Pastry
Bake your puff pastry in the preheated oven for about 35-45 minutes until golden and crisp. Keep an eye on it starting around the 30-minute mark. Letting it cook until golden brown ensures that your pastry has that perfect flaky texture we all love.
Step 3: Trim the Edges
Once baked, let the pastry cool completely before trimming. Use a serrated knife to carefully cut the edges so they fit an 8×8-inch square pan perfectly. This step not only makes it look neater but also helps with layering later on!
Step 4: Mix the Dry Ingredients
In a medium saucepan, whisk together the granulated sugar, cornstarch, and kosher salt until well combined. Then add your egg yolks and whisk again until everything is thoroughly mixed.
Step 5: Warm the Milk
In another saucepan, warm your whole milk over medium heat until it begins to steam—but be careful not to boil it! Warming it gently will help incorporate it better into your custard mixture.
Step 6: Temper the Eggs
Slowly pour in one cup of warm milk into your sugar-egg mixture while whisking continuously. This process helps temper your eggs without cooking them too quickly—very important for creating that smooth custard we crave!
Step 7: Cook, Then Add Butter
Now pour the tempered egg mixture back into the saucepan with the remaining warm milk. Cook over medium heat while whisking constantly until thickened and bubbly—this should take about 5-7 more minutes. Remove from heat and stir in those lovely vanilla bean seeds along with cold cubed butter until everything is smooth.
Step 8: Assemble, Then Chill
Line your square pan completely with aluminum foil, leaving some overhang for easy removal later on. Place one piece of cooked puff pastry at the bottom of your pan, pour warm custard on top (you can sieve it if desired), then smooth it out evenly. Press down gently on the second piece of puff pastry placed atop it. Cover tightly with plastic wrap or foil and refrigerate for at least four hours or overnight.
Step 9: Slice Then Serve!
When ready to serve, lift your creamy vanilla slice out using those handy foil edges! Transfer it carefully onto a cutting board and use a serrated knife to slice into squares—remember to wipe clean between cuts for neatness! Dust generously with powdered sugar before enjoying every delicious bite!
Pro Tips for Making Creamy Vanilla Slice with Flaky Puff Pastry
Creating a stunning Creamy Vanilla Slice is all about the details, and with these helpful tips, you’ll be able to nail it every time!
-
Use cold ingredients: Ensure your butter is cold when adding it to the custard. This helps create a rich and creamy texture, making your slice even more indulgent.
-
Don’t rush the custard: Cooking the custard slowly over medium heat allows all the flavors to meld beautifully. Quick cooking can lead to lumps or a grainy texture, which we definitely want to avoid!
-
Chill overnight for best results: While you can refrigerate for at least 4 hours, letting it chill overnight enhances the flavors and makes slicing easier. You’ll be rewarded with an even creamier texture!
-
Score before slicing: Lightly scoring the top layer of pastry before cutting will help guide your knife and make cleaner cuts. It’s a simple step that can elevate the presentation!
-
Experiment with fillings: While vanilla is classic, feel free to add other flavorings like almond extract or citrus zest in the custard for a fun twist! This keeps things exciting and caters to different taste preferences.
How to Serve Creamy Vanilla Slice with Flaky Puff Pastry
Serving your Creamy Vanilla Slice can be just as delightful as making it! Here are some fun ideas on how to present this elegant dessert.
Garnishes
-
Fresh berries: A handful of seasonal berries like strawberries or raspberries not only adds a pop of color but also introduces a refreshing tartness that balances the sweetness of the slice.
-
Mint leaves: A few sprigs of fresh mint on top lend a beautiful touch and a subtle hint of freshness that brightens up each bite.
Side Dishes
-
Whipped coconut cream: A light and airy whipped coconut cream is a fantastic dairy-free alternative that complements the richness of the vanilla slice beautifully.
-
Fruit salad: A colorful mix of diced fruits such as kiwi, pineapple, and oranges provides a refreshing contrast to the creamy texture of the dessert.
-
Espresso or coffee: The bold flavors of espresso or coffee pair wonderfully with sweet desserts, enhancing their taste without overpowering them.
With these serving suggestions, your Creamy Vanilla Slice with Flaky Puff Pastry will shine at any gathering! Whether enjoyed alone or alongside these delightful accompaniments, it’s bound to impress your friends and family. Happy baking!

Make Ahead and Storage
This Creamy Vanilla Slice with Flaky Puff Pastry is perfect for meal prep! You can easily make it in advance for parties, gatherings, or simply to enjoy throughout the week.
Storing Leftovers
- Place any leftover slices in an airtight container.
- Store in the refrigerator for up to 3 days.
- Dust with powdered sugar just before serving to maintain presentation.
Freezing
- Wrap individual slices tightly in plastic wrap or foil.
- Place wrapped slices in a freezer-safe container or zip-top bag.
- Freeze for up to 2 months. Thaw in the refrigerator overnight before enjoying.
Reheating
- For best results, allow slices to come to room temperature before serving.
- If you prefer them warm, gently reheat in an oven at 300°F (150°C) for about 10 minutes.
FAQs
Here are some common questions you might have about this delightful dessert!
Can I make this Creamy Vanilla Slice with Flaky Puff Pastry ahead of time?
Absolutely! This recipe is ideal for making ahead. Just follow the storage instructions above, and you’ll have a delicious treat ready when you need it.
What can I substitute for egg yolks in the custard?
For a vegan alternative, consider using silken tofu blended until smooth or a store-bought egg replacer designed for baking. Adjustments may be necessary for consistency.
How do I ensure my puff pastry stays flaky?
To keep your puff pastry flaky, avoid overworking the dough and ensure it’s chilled before baking. Pricking with a fork helps too!
Final Thoughts
I hope you feel inspired to try making this Creamy Vanilla Slice with Flaky Puff Pastry! It’s a truly special dessert that combines luxurious flavors and textures. Remember, whether you’re serving it at a gathering or enjoying it as a sweet treat at home, it’s sure to impress anyone who takes a bite. Happy baking, and may your kitchen be filled with joy and delicious aromas!
Creamy Vanilla Slice with Flaky Puff Pastry
Indulge in the delightfully creamy goodness of this Creamy Vanilla Slice with Flaky Puff Pastry. Perfect for any occasion, this dessert combines a rich vanilla custard layered between flaky puff pastry, creating a treat that feels special yet is surprisingly simple to prepare. Ideal for family gatherings or as a sweet personal indulgence after a long day, this slice is sure to impress. With its elegant presentation and customizable flavors, it has quickly become a favorite in many dessert rotations. Discover how easy it is to create this luscious dessert that will have everyone coming back for seconds.
- Prep Time: 30 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 15 minutes
- Yield: Serves approximately 9 slices 1x
- Category: Dessert
- Method: Baking
- Cuisine: French
Ingredients
- 2 sheets of puff pastry (thawed)
- ⅔ cup granulated sugar
- ½ cup cornstarch
- ¼ tsp kosher salt
- 3½ cups whole milk (warm)
- 6 large egg yolks (room temperature)
- 1 vanilla bean (seeds scraped out) or 2 tsp vanilla bean paste
- 4 Tbsp unsalted butter (cold, cubed)
- Powdered sugar (for dusting)
Instructions
- Preheat oven to 400°F (200°C). Line two baking trays with parchment paper.
- Roll out puff pastry sheets slightly and prick all over with a fork. Place on trays and cover with another sheet of parchment and a second tray to weigh down.
- Bake for about 35-45 minutes until golden and crisp, then cool completely before trimming edges.
- In a saucepan, whisk together sugar, cornstarch, and salt. Add egg yolks and mix well.
- Warm milk in another saucepan until steaming, then slowly pour into egg mixture while whisking continuously.
- Return tempered mixture to the saucepan and cook over medium heat until thickened (5-7 minutes). Stir in vanilla seeds and cold butter until smooth.
- Line an 8×8-inch pan with foil. Layer one piece of pastry at the bottom, pour custard on top, then press down the second piece of pastry.
- Cover tightly and refrigerate for at least four hours or overnight before slicing.
Nutrition
- Serving Size: 1 serving
- Calories: 305
- Sugar: 22g
- Sodium: 150mg
- Fat: 15g
- Saturated Fat: 9g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 0g
- Protein: 5g
- Cholesterol: 185mg