Easy Vanilla Slices. Creamy custard sandwiched between sheets of crispy puff pastry make for a nice chilled treat perfect for any occasion. I have made this recipe easy, simply because it is so delicious, but if you were to make it the 'complicated' way, then I guess very few people would have the time or patience to make it!

Easy Vanilla Slices. Creamy custard sandwiched between sheets of crispy puff pastry make for a nice chilled treat perfect for any occasion.

Vanilla Slices are also called Custard Slice, Millefeuille, Napoleon, gosh, the list is endless.

Typically, there should be three layers of puff pastry and then in between, there would be pastry cream, whipped cream, powdered sugar, or an icing glaze.

It really does vary from country to country, and if you ever visit New Zealand, then you need to call this a Passionfruit Slice!

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What I have done to make this easy and delicious is to use 2 layers of pastry, with a simple custard filling, using milk and a small amount of cream.

Easy Vanilla Slices. Creamy custard sandwiched between sheets of crispy puff pastry make for a nice chilled treat perfect for any occasion.

For the topping, I decided to add some fresh strawberries and a little puree under the strawberries just because the flavors went very well and added another dimension to the slice.

You could leave it with just a sprinkling of powdered sugar, or an icing glaze. It's up to you!

So please do enjoy, and have fun making this classic French Pastry. Perfect for an afternoon tea party too!

For this recipe, I used ready-made pastry as I had some handy in the freezer. If you'd like to make your own, you can use our quick and easy flaky pie crust recipe.

Prep time

15 minutes

Baking time 

15 minutes

Serving size

 6 Slices

Ingredients

The Pastry

17 oz Package or 180 g of frozen puff pastry sheets, thawed.
I cut each Vanilla slice into approx 5 inches (12.5 cm) long by 2.5 inches (6 cm) wide. (you can cut them to suit)

The Filling

1/4 cup or 75 g white sugar
3 Tablespoons custard powder (I use Bird's Custard powder)
1/4 cup or 35 g cornstarch
1 3/4 cups or 465 ml milk
1 1/2 Tablespoons butter
1 egg yolk
1/2 teaspoon vanilla extract

The Sugar Icing

1/4 cup and 2 tablespoons or 45 g powdered / icing sugar
1 teaspoon milk
a drop vanilla extract

Topping

Strawberries or other berries (optional)

Instructions

1. Preheat the oven to 400 F / 200 C. Unfold puff pastry sheets and place flat onto baking sheets.

Easy Vanilla Slices, showing pastry

Bake for 10 to 15 minutes, or until lightly browned and puffed. (I am not able to buy whole sheets of puff pastry so in my photos you will see 'square' shapes of pastry!)

Easy Vanilla Slices, showing pastry baked
1200

When cool enough to handle place the pastry on to a cutting board and cut rectangles of even sizes. You need 12 rectangles. Once cut, set aside.

Top Tips

  • You can bake the pastry as an entire sheet, and then build the vanilla slices in the pan and chill, then try to slice them.
  • However, if you cut the pastry into equal rectangles first, before building the slice, this will give you ready-made slices when ready to serve. If you try to cut the vanilla slices once they're built, the filling will likely squash out the sides once the knife goes in. So having them ready cut before assembly is the best way I find to avoid squashing them!
  • Remember, there will be a bottom layer and a top layer of pastry. I cut my pastry into approx 5 inches (12.5 cm) long by 2.5 inches (6 cm) wide, so I had 12 rectangles.

2. In a pan, add the sugar, custard powder, cornstarch and some of the measured milk to combine to a thick paste. Then add the remaining milk. Place on a medium heat and keep stirring until thick. Add the butter and combine.

When the custard starts to simmer, remove from the heat and add the vanilla extract and then the egg yolk, and stir very well.

Thick jello/custard

Transfer to a bowl and place a layer of plastic wrap directly on the top of the custard mixture. this will stop a skin forming. Allow to cool

3. Line a suitable baking dish with aluminum foil and also up the sides of the dish so you can lift the slices out later.

Place 6 of the baked pastry rectangles in the bottom of the dish, pack them so they are a tight fit.

If you don’t have a pan to fit the rectangles, you can use the foil and bring it up the side to keep the custard from spilling off the pastry.

The photo below shows you I had to do that with the foil as my pan was too big.

4. Spread the custard filling in an even layer over the pastry,

Easy Vanilla Slices, showing filling on the pastry

then place the other pieces of pastry on top. Select the nicest side to make the surface!

Easy Vanilla Slices, showing filling on the pastry then second pastry layer

5. In a cup, add the powdered sugar and milk, and vanilla extract and stir until a paste. Spread this icing over the top of the pastry. I use a brush so it is even.

Place the slices in the fridge until set. When firm, use the sides of the foil and lift from the dish, and slice to the sizes you wish. If possible, refrigerate overnight so the filling can set fully.

When ready to serve, top with strawberries or leave as they are.

Easy Vanilla Slices, showing slices ready to refrigerate

We'd love to hear from you and what you thought of our post. Did you make any changes or add some other goodies? Let us know in the comments below. Thanks for reading and happy cooking!

Easy Vanilla Slices. Creamy custard sandwiched between sheets of crispy puff pastry make for a nice chilled treat perfect for any occasion.

Recipe Card

Easy Vanilla Slices. Creamy custard sandwiched between sheets of crispy puff pastry make for a nice chilled treat perfect for any occasion.

Easy Vanilla Slices

Yield: 6
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Easy Vanilla Slices. Creamy custard sandwiched between sheets of crispy puff pastry make for a nice chilled treat perfect for any occasion.

Ingredients

The Pastry

  • 17 oz Package or 180 g of frozen puff pastry sheets, thawed.
  • slice I cut each Vanilla into approx 5 inches long by 2.5 inches wide., 12.5 cm, 6 cm, you can cut them to suit

The Filling

  • 1/4 cup or 75 g white sugar
  • 3 Tablespoons custard powder, I use Bird's Custard powder
  • 1/4 cup or 35 g cornstarch
  • 1 3/4 cups or 465 ml milk
  • 1 1/2 Tablespoons butter
  • 1 egg yolk
  • 1/2 teaspoon vanilla extract

The Sugar Icing

  • 1/4 cup and 2 tablespoons or 45 g powdered / icing sugar
  • 1 teaspoon milk
  • a drop vanilla extract
  • Topping : Strawberries or other berries, optional

Instructions

  1. Preheat the oven to 400 F / 200 C. Unfold puff pastry sheets, and place flat onto baking sheets. Bake for 10 to 15 minutes, or until lightly browned and puffed. (I am not able to buy whole sheets of puff pastry so in my photos you will see 'square' shapes of pastry!) When cool enough to handle place the pastry on to a cutting board and cut rectangles of even sizes. You need 12 rectangles. Once cut, set aside.
  2. ** Remember, there will be a bottom layer and a top layer of pastry. I cut my pastry in to approx 5 inches (12.5 cm) long by 2.5 inches (6 cm) wide, so I had 12 rectangles.
  3. In a pan, add the sugar, custard powder, cornstarch and some of the measured milk to combine to a thick paste. Then add the remaining milk. Place on a medium heat and keep stirring until thick. Add the butter and combine. When the custard starts to simmer, remove from the heat and add the vanilla extract and then the egg yolk, and stir very well. Allow to cool.
  4. Line a suitable baking dish with aluminum foil and also up the sides of the dish so you can lift the slices out later. Place 6 of the baked pastry rectangles in the bottom of the dish, pack them so they are a tight fit. If you don't have a pan to fit the rectangles, you can use the foil and bring it up the side to keep the custard from spilling off the pastry. The photo below shows you I had to do that with the foil as my pan was too big.
  5. Spread the custard filling in an even layer over the pastry, then place the other pieces of pastry on top. Select the nicest side to make the surface!
  6. In a cup, add the powdered sugar and milk, and vanilla extract and stir until a paste. Spread this icing over the top of the pastry. I use a brush so it is even. Place the slices in the fridge until set. When firm, use the sides of the foil and lift from the dish, and slice to the sizes you wish.
  7. When ready to serve, top with strawberries or leave as they are.
Nutrition Information:
Yield: 6 Serving Size: 1 grams
Amount Per Serving: Calories: 411Total Fat: 18gSaturated Fat: 5gTrans Fat: 0gUnsaturated Fat: 12gCholesterol: 61mgSodium: 171mgCarbohydrates: 53gFiber: 2gSugar: 24gProtein: 7g

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2 thoughts shared

    1. Hi Judy, Custard powder is like Vanilla pudding, so it’s a powder which you mix with milk and it thickens. if you can’t get it, use vanilla pudding mix.