Creamy Vanilla Slice with Flaky Puff Pastry
If you’re looking for a dessert that impresses without requiring hours in the kitchen, then you’ve stumbled upon a gem! This Creamy Vanilla Slice with Flaky Puff Pastry has a special place in my heart. It brings back warm memories of family gatherings, where everyone would gather around the table, eagerly waiting for that first slice. The combination of crisp pastry and rich custard is simply irresistible, making it perfect for any occasion—be it a busy weeknight treat or a fancy celebration.
One of the best things about this recipe is how approachable it is. Even if you’re new to baking, this Creamy Vanilla Slice will have you feeling like a pro! So grab your apron and get ready to wow your friends and family with this delightful dessert.
Why You’ll Love This Recipe
- Easy preparation: With just a few simple steps, you can create a stunning dessert that looks as good as it tastes.
- Family-friendly appeal: Kids and adults alike will love the creamy custard and flaky pastry—it’s sure to be a hit at your next gathering!
- Make-ahead convenience: Prepare this dessert the night before, allowing the flavors to meld beautifully while saving you time on the day of your event.
- Decadent flavor: The infusion of vanilla bean elevates this classic treat to something truly special.

Ingredients You’ll Need
Let’s take a look at the simple, wholesome ingredients that make this Creamy Vanilla Slice with Flaky Puff Pastry so delicious. You probably have most of these in your pantry already!
For the Pastry
- 2 (8½ oz; 490g) sheets of puff pastry, (thawed)
For the Custard
- 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)
For Dusting
- Powdered sugar, (for dusting)
Variations
This recipe is wonderfully flexible. Here are some fun variations to keep things interesting:
- Add fruit layers: Consider layering fresh berries or sliced bananas between the custard and pastry for an extra fruity twist.
- Chocolate lover’s dream: Swirl in some melted chocolate into the custard before pouring it onto the pastry for a decadent chocolate version.
- Nutty crunch: Sprinkle chopped nuts like almonds or hazelnuts atop the custard layer for added texture and flavor.
- Lemon zest kick: Add some lemon zest to the custard mixture for a refreshing citrus twist.
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 the puff pastry sheets slightly to about 9×9 inches. Prick all over with a fork; this prevents puffing during baking. Place them on the trays, covering with another sheet of parchment and placing another tray on top as weight. If needed, repeat with additional trays.
Step 2: Bake the Puff Pastry
Bake for about 35-45 minutes until golden and crisp. Be sure to check around 30 minutes; you want that perfect golden brown! Once baked, set aside and let cool completely.
Step 3: Trim the Edges
Carefully trim any uneven edges using a serrated knife so that they fit perfectly in your 8×8-inch square pan. This step ensures clean lines when serving your delightful slices.
Step 4: Mix the Dry Ingredients
In a medium saucepan, whisk together granulated sugar, cornstarch, and kosher salt. Add in those six lovely egg yolks and whisk until everything is combined well—this forms the base of your silky custard!
Step 5: Warm the Milk
In another saucepan over medium heat, warm whole milk until it starts steaming but doesn’t boil. This step is crucial because adding hot milk helps create that smooth custard texture.
Step 6: Temper the Eggs
Slowly pour one cup of warm milk into your sugar mixture while whisking continuously—this gradual process prevents curdling! Once mixed well, add it back into the saucepan with remaining milk.
Step 7: Cook and Add Butter
Keep cooking over medium heat while whisking constantly until thickened and bubbling for about 5-7 more minutes. Off heat, stir in vanilla seeds or paste along with cold cubed butter until fully melted and incorporated.
Step 8: Assemble and Chill
Line an 8×8 pan fully with aluminum foil for easy lifting later. Place one piece of baked puff pastry on bottom; pour warm custard over it smoothing out evenly. Top it off with another piece of pastry gently pressing down. Cover tightly with plastic wrap or foil and chill for at least four hours or overnight if possible!
Step 9: Slice Then Serve!
When ready to serve, gently lift out using foil overhang onto a cutting board. Cut into squares using a serrated knife—scoring helps keep slices neat! Dust generously with powdered sugar before enjoying every decadent bite!
Now you’re all set to create this stunning Creamy Vanilla Slice with Flaky Puff Pastry! Trust me; once you try it, you won’t be able to resist coming back for more!
Pro Tips for Making Creamy Vanilla Slice with Flaky Puff Pastry
Creating the perfect creamy vanilla slice is a delightful journey, and a few helpful tips can make all the difference!
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Use cold ingredients: Starting with cold butter and room temperature egg yolks ensures that your custard thickens properly without curdling, leading to that dreamy texture we all love.
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Keep an eye on the baking: Baking the puff pastry until it’s golden brown is key. This not only helps achieve that lovely flaky texture but also enhances the flavor, giving your dessert a beautiful contrast between buttery pastry and creamy filling.
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Sieve your custard: Running your custard through a sieve before pouring it onto the pastry can help eliminate any lumps, ensuring a silky-smooth texture that enhances your slice’s overall appeal.
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Chill overnight if possible: Allowing your vanilla slice to chill overnight intensifies the flavors and makes it easier to cut clean slices. Patience truly pays off here!
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Use serrated knives for cutting: When slicing your vanilla slice, using a serrated knife will help maintain clean edges without squishing the delicate layers, making each piece look as good as it tastes.
How to Serve Creamy Vanilla Slice with Flaky Puff Pastry
Presenting your creamy vanilla slice in an enticing way can elevate this delightful dessert even further! Here are some fun ideas to try out.
Garnishes
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Fresh berries: A handful of strawberries or raspberries adds a pop of color and a burst of tartness that beautifully complements the sweetness of the vanilla slice.
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Mint leaves: A sprig of fresh mint on top not only looks gorgeous but also adds a refreshing aroma and flavor contrast to each bite.
Side Dishes
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Whipped coconut cream: This dairy-free alternative brings a light, airy touch that pairs wonderfully with the rich custard while adding an extra hint of sweetness.
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Fruit salad: A simple mix of seasonal fruits can provide a refreshing balance to the richness of the slice, making every bite feel lighter and more vibrant.
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Coffee or tea: Serving alongside a warm cup of coffee or herbal tea can enhance your dessert experience by providing warmth and depth, complementing the creamy flavors perfectly.
With these tips and serving suggestions, you’re all set to impress friends and family alike with your deliciously decadent creamy vanilla slice! Enjoy every mouthful!

Make Ahead and Storage
This Creamy Vanilla Slice with Flaky Puff Pastry is perfect for meal prep, allowing you to indulge in a delightful dessert any time you crave it. You can easily make this treat ahead of time, store it properly, and enjoy it later!
Storing Leftovers
- Place any leftover slices in an airtight container.
- Store in the refrigerator for up to 3 days.
- For best results, dust with powdered sugar just before serving.
Freezing
- To freeze, wrap individual slices tightly in plastic wrap or aluminum foil.
- Place wrapped slices in a freezer-safe container or bag.
- Freeze for up to 2 months. Thaw overnight in the refrigerator before serving.
Reheating
- This dessert is best enjoyed chilled, but if you prefer it warm:
- Preheat your oven to 350°F (175°C).
- Place slices on a baking tray and warm for about 10 minutes.
- Allow to cool slightly before serving.
FAQs
Here are some common questions that might arise while making your Creamy Vanilla Slice with Flaky Puff Pastry.
Can I use store-bought custard instead of making my own?
Yes! You can substitute homemade custard with store-bought for convenience. Just ensure it’s a thick custard for the best texture.
How do I ensure my puff pastry is flaky?
To achieve that desired flakiness, be sure not to overwork the pastry and keep your ingredients cold—especially the butter!
What can I substitute for cornstarch in the recipe?
You can use arrowroot powder or tapioca starch as alternatives to cornstarch if needed; both will help thicken your custard beautifully.
How should I serve my Creamy Vanilla Slice with Flaky Puff Pastry?
Dust with powdered sugar right before serving, and consider pairing it with fresh berries or cream for an extra indulgent touch!
Can I make this Creamy Vanilla Slice with Flaky Puff Pastry gluten-free?
Yes! Simply use gluten-free puff pastry available at most grocery stores, and follow the rest of the recipe as directed.
Final Thoughts
I hope you find joy in creating this wonderful Creamy Vanilla Slice with Flaky Puff Pastry! It’s a delightful treat that’s perfect for gatherings or just a cozy night in. Enjoy the process of making it as much as you will enjoy eating it. Happy baking!
Creamy Vanilla Slice with Flaky Puff Pastry
Creamy Vanilla Slice with Flaky Puff Pastry is a delightful dessert that combines luscious custard with crispy, golden pastry for a truly indulgent experience. This elegant treat is not only simple to prepare but also perfect for any occasion, whether it’s a casual family dinner or a special celebration. The rich vanilla flavor and smooth texture will impress your guests, while the make-ahead convenience saves you time on the day of your event. With just a few straightforward steps, you can create a stunning dessert that everyone will love. Get ready to savor each bite of this creamy goodness!
- 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 thawed puff pastry
- ⅔ cup granulated sugar
- ½ cup cornstarch
- ¼ tsp kosher salt
- 3½ cups warm whole milk
- 6 large egg yolks
- 1 vanilla bean (or 2 tsp vanilla bean paste)
- 4 Tbsp cold unsalted butter
- Powdered sugar (for dusting)
Instructions
- Preheat oven to 400°F (200°C). Line baking trays with parchment paper and roll out puff pastry sheets to about 9×9 inches. Prick with a fork and weigh down before baking for 35-45 minutes until golden.
- In a saucepan, whisk together sugar, cornstarch, and salt. Mix in egg yolks until combined.
- Warm milk in another saucepan until steaming. Gradually add to the egg mixture while whisking continuously.
- Return mixture to heat and cook over medium heat until thickened (about 5-7 minutes). Stir in vanilla seeds and cold butter.
- Assemble by layering one piece of baked pastry in an 8×8 pan, pouring custard over it, topping with another pastry piece, then chilling for at least four hours or overnight.
- When ready to serve, dust with powdered sugar and cut into squares.
Nutrition
- Serving Size: 1 serving
- Calories: 230
- Sugar: 15g
- Sodium: 90mg
- Fat: 11g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 29g
- Fiber: 0g
- Protein: 4g
- Cholesterol: 140mg
