Tail Title: How to make authentic Italian pastry cream from scratch with cornstarch, vanilla bean, and a foolproof no-lump method
Pastry cream is the foundation of countless pastry preparations. It can be the perfect filling for cream puffs (bignè), a luscious layer for puff pastry cakes, or a classic sponge cake filling. Let’s not forget it’s also delicious served on its own, perhaps accompanied by crunchy cookies.
It’s very easy to make as long as you follow a few simple guidelines to avoid that ever-looming “culinary disaster.” In fact, who hasn’t had their pastry cream curdle? Meaning it turns into a shapeless, lumpy, separated mess that is completely unrecoverable no matter what you try to revive it—basically ending up in the trash.
To prevent problems like this from happening, there is nothing difficult or impossible. Just follow a few simple tips, and next time your pastry cream will be as good and perfect as the best pastry chef’s!
It’s a very versatile preparation. You just need to slightly adjust the proportions of certain ingredients to achieve different textures suited to whatever use you have in mind!
For example, if you want to omit the heavy cream (which makes the cream richer and silkier), you can simply substitute it with the same amount of milk.
Instead of a vanilla bean, you can aromatize the cream with untreated orange or lemon zest.
To make it thicker, simply use more cornstarch, or decrease the amount if you want to enjoy it by the spoonful.
Ingredients
Tools
Instructions: How to Make Foolproof Italian Pastry Cream
First, slice the vanilla bean lengthwise and scrape out the seeds (set them aside for later) using the tip of a small knife.
Infusing and Whisking the Base
In a small saucepan, bring the milk to a boil with the lemon peel and vanilla bean seeds infusing inside. Meanwhile, in a bowl, whisk together the egg yolks and sugar with a hand whisk until slightly pale and foamy. Then, add the cornstarch (and rice starch, if using) to the yolk and sugar mixture, whisking until smooth and homogeneous.
Cooking the Custard
By now, the milk will have reached a boil; strain it and pour it into the bowl containing the eggs, sugar, and starch, whisking well until completely dissolved. Pour the mixture back into the saucepan and place it over medium heat, stirring continuously with a whisk to prevent lumps from forming or the bottom from burning. As soon as the mixture starts bubbling, remove the pastry cream from the heat and pour it into a flat dish or a baking dish.
Cooling and Storing
When the pastry cream has cooled slightly, add the cubed butter and stir until completely melted and incorporated into the cream. Cover the cream with plastic wrap pressed directly onto the surface (“a contatto”) to prevent a skin from forming. Let the cream cool completely, then place it in the refrigerator for at least 2 hours before using. When ready to use, pour it into a bowl and whisk vigorously by hand to make it soft and creamy again.
Storage
You can store pastry cream in the refrigerator for 2–3 days covered with plastic wrap, or you can freeze it—in which case it will last for a month.
Secrets for Perfect Italian Pastry Cream
Separating Whites and Yolks:
When separating the yolks from the whites, make sure no egg white ends up in the bowl with the yolks, otherwise they will be harder to whisk properly.
Immediate Whisking:
As soon as you add the sugar to the yolks, start whisking them immediately with an electric mixer or hand whisk; this is very important for the success of your cream. Sugar in contact with egg yolks tends to absorb their water content, crystallizing the proteins and making the mixture lumpy.
Order of Ingredients:
The order in which the ingredients are mixed is not random, so respecting it is crucial for the success of the recipe.
Starch Instead of Flour:
Using starch instead of flour does not negatively affect the yield of the cream. In fact, besides making it gluten-free, it avoids that unpleasant floury aftertaste that sometimes happens with flour, and lumps are much less likely to form.
The Butter Step:
You can skip adding butter and omit the final step, though I recommend it to get a richer and tastier pastry cream.
Change Pans:
When putting the mixture back on the stove, do not use the exact same saucepan you used to boil the milk, because it will have a thin film of milk on the bottom, making it easy for the cream to stick or burn.
Fixing Lumps:
If by mistake you didn’t stir the pastry cream well enough during cooking and lumps formed, don’t worry—you can still fix it. Pass the still-warm pastry cream through a fine-mesh sieve, stirring and pressing down with a spoon to push it through the mesh; you’ll see how smooth and silky it becomes!
Frequently Asked Questions (FAQ)
1. Can I use whole flour instead of cornstarch?
While traditional recipes sometimes used flour, cornstarch (or rice starch) is strongly recommended. Starch thickens faster, prevents a heavy floury aftertaste, and yields a much silkier, glossier, and naturally gluten-free pastry cream without forming stubborn lumps.
2. Why does a skin form on top of the pastry cream?
A skin forms when hot pastry cream cools and the proteins and starches on the surface dry out due to air exposure. To prevent this, always place plastic wrap directly touching the surface of the cream (“a contatto”) while it cools.
3. Can I freeze pastry cream?
Yes, you can freeze pastry cream for up to a month in an airtight container. When ready to use it, let it thaw slowly in the refrigerator overnight, then whisk it vigorously to restore its smooth, creamy consistency.
Varied doses for servings