Classic Pastry Cream
A reliable pastry cream should be thick enough to hold its shape when piped, yet smooth enough to melt on the tongue. It relies on the precise moment the starch gelatinizes, transforming a thin liquid into a structured cream.
Watch the temperature, not the clock.
Keep a whisk in your hand the entire time. If the heat is too high or you stop moving, you will end up with scrambled eggs instead of a smooth base.
- Heavy-bottomed saucepan
- Whisk
- Fine-mesh sieve
- Mixing bowl
- Plastic wrap
What goes in.
- 2 cupswhole milk
- 1/2 cupgranulated sugar, divided
- 4large egg yolks
- 1/4 cupcornstarch
- 2 tbspunsalted butter, cold
- 1 tspvanilla extract
Bringing the two temperatures together
Slowly streaming hot milk into your cold egg mixture prevents the yolks from curdling, allowing them to adjust to the heat gradually before returning to the stove.
The method.
Heat the milk
Bring the milk and half the sugar to a gentle simmer in your saucepan over medium heat. Remove from heat as soon as bubbles appear at the edges.
Whisk the yolks
In a bowl, whisk the yolks, the remaining sugar, and the cornstarch until the mixture is pale yellow and thick.
Temper
Whisking constantly, slowly pour about half of the hot milk into the egg mixture. This raises the yolk temperature without cooking them.
Cook
Pour the mixture back into the saucepan. Place over medium heat, whisking vigorously. Once it reaches a boil, continue to whisk for exactly one minute as it thickens into a glossy, heavy cream.
Finish
Remove from heat. Whisk in the cold butter and vanilla. Pass the cream through a sieve into a clean bowl to ensure it is perfectly smooth.
Cool
Press plastic wrap directly onto the surface of the cream to prevent a skin from forming. Chill in the refrigerator until cold.
Other turns to take.
Chocolate Pastry Cream
Whisk 3 ounces of finely chopped bittersweet chocolate into the cream immediately after removing it from the heat.
Coffee Pastry Cream
Steep 2 tablespoons of whole coffee beans in the milk while it heats, then strain before tempering.
When it doesn't go to plan.
Use a heavy-bottomed pan to prevent hot spots that can scorch the bottom of the cream.
If you see small lumps, whisk the cream vigorously over an ice bath; the cold can sometimes help stabilize the emulsion.
Avoid using a wooden spoon for the initial cooking; the wire whisk is necessary to reach the corners of the pan and keep the cornstarch moving.
The ones that keep coming up.
Why did my pastry cream turn runny after cooling?
The starch likely didn't reach a full boil. You must see bubbles surfacing and cook for at least one full minute to ensure the cornstarch gelatinizes completely.
Can I use flour instead of cornstarch?
You can, but you will need to use double the amount. Cornstarch provides a cleaner, glossier finish that doesn't mask the flavor of the milk.
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