What is 9oz self raising flour?

Here's a breakdown:

* 9 oz: This refers to the weight of the flour.

* Self-raising flour: This type of flour has a chemical leavening agent (like baking powder) already mixed in. This means it will rise when baked, creating light and airy baked goods.

Note: The exact amount of raising agent in self-raising flour can vary by brand.

If you don't have self-raising flour, you can easily make your own by adding 1 1/2 teaspoons of baking powder per 100g (3.5oz) of plain flour.