When do you add corn flour when making meringue?

You don't add corn flour when making meringue.

Corn flour is used to stabilize and thicken sauces, gravies, and other liquids. It's not used in meringue because:

* Meringue is already stable: Egg whites, when whipped, create a stable foam that holds its shape without the need for extra thickening agents.

* Corn flour would alter the texture: Adding corn flour would make the meringue dense and chewy, instead of light and airy.

Here's what you should use instead:

* Sugar: Sugar helps stabilize the meringue by drawing moisture from the egg whites and making them more stable.

* Cream of tartar: This acid helps the egg whites whip up into a stiffer and more stable foam.

If you're looking to add a corn flour-like element to your meringue, try using a cornstarch meringue. This recipe uses a bit of cornstarch to create a thicker and more stable meringue, but it still retains its light and airy texture.