How to Thicken Custard After Cooked?

Last Updated on November 26, 2022 by Lauren Beck

If your custard is already cooked and you find it too thin, there are a few simple tricks to thicken the mixture. The most common method of how to thicken custard after cooking is to add cornstarch or flour to help absorb the extra liquid. Begin by whisking together several tablespoons of cornstarch with an equal amount of cold water. Gradually add this mixture to your cooked custard while stirring continuously over low heat until the desired consistency is reached.

Other Ways to Thicken Custard After Cooked

If you don’t have cornstarch or flour on hand, you can still thicken custard after cooking. Simply bring the custard to a simmer and let it cook for an additional 5-10 minutes until it reaches the desired consistency. The liquid will slowly evaporate, leaving behind a thicker mixture. You can also add powdered sugar to your custard for additional thickening. Simply whisk in the desired amount of sugar until it is fully dissolved and the mixture has reached your desired consistency.

If you find that your custard is still too runny after these methods, you can also try adding a bit of cream or butter to help thicken it up. Whisk together equal parts of cream and butter until fully blended, then slowly add it to your custard while stirring continuously. This method will help to make a rich and creamy custard that is perfect for any dessert!

What Is Custard?

Custard is a type of cooked dessert made with milk or cream, egg yolks, and sugar. It can be served both hot or cold depending on how it is prepared. There are many variations to this classic recipe including vanilla, chocolate, lemon curd, and even pumpkin custard. Custards usually require the mixture to be heated slowly while stirring continuously, thus preventing the eggs from scrambling and creating a smooth, creamy texture.

How to Make a Custard?

homemade custard on a white bowl


  • 2 cups whole milk
  • 4 egg yolks
  • 3 tablespoons sugar
  • 1 teaspoon vanilla extract


  1. In a medium saucepan, whisk together the milk, egg yolks, and sugar until fully blended.
  2. Place the saucepan over low heat and cook the mixture, stirring continuously, until it thickens and coats the back of a spoon.
  3. Remove the saucepan from heat and stir in the vanilla extract.
  4. Pour the custard into individual dishes or a single serving dish and chill for at least 2 hours before serving.

Why Is My Custard Watery?

Here are a few reasons why your custard may be watery:

  • You did not cook the mixture long enough, allowing too much liquid to remain.
  • You did not whisk the mixture constantly while it was cooking, causing lumps of egg to form.
  • The heat was too high, resulting in scrambled eggs instead of a creamy texture.
  • You added too much liquid, resulting in a thin custard.

What Consistency Should Custard Be?

Custard should be thick enough to coat the back of a spoon and hold its shape when scooped onto a plate. It should not be watery or lumpy, but rather have a smooth, creamy texture. If your custard is too thin, you can use one of the methods outlined in this article to thicken it up.

Why Does Custard Go Watery In the Fridge?

Once custard is chilled in the refrigerator, it may become watery as a result of condensation. This is due to the proteins in egg yolks solidifying when cooled, resulting in excess liquid being released. To prevent this from happening, you can reduce the amount of liquid that was used when making the custard or gently reheat the custard on the stove before serving.

What Temperature Does Egg Custard Set At?

Egg custard should be cooked slowly over low heat until it reaches a temperature of 170-180°F (77-82°C). This is when the proteins in the egg yolks will coagulate and thicken, resulting in a creamy custard [1]. It is important to remove the custard from heat as soon as it reaches this temperature in order to prevent the eggs from scrambling.

How Do You Store Custard?

Store custard in an airtight container in the refrigerator for up to 3 days. To reheat, heat it gently on the stove over low heat until it is just warmed through. Do not boil or overcook!

Can You Freeze Custard?

Yes, you can freeze custard. Place the custard in a freezer-safe bag or container and store in the freezer for up to 3 months. To thaw, place the frozen custard in the refrigerator overnight before reheating it gently over low heat on the stove.


Custard is a delicious and versatile dessert that can be enjoyed hot or cold. If your custard turns out too thin, you can thicken it up by adding equal parts of cream and butter while stirring constantly, or by gently reheating the custard on the stove over low heat. Store custard in an airtight container in the refrigerator for up to 3 days, or in the freezer for up to 3 months. With these tips, you’ll be able to enjoy a creamy and delicious custard every time!


Lauren Beck
Latest posts by Lauren Beck (see all)

Leave a Comment