If a recipe calls for baking powder do you use plain flour or selfrising flour?

Here's why:

* Self-rising flour already contains baking powder. Using it would essentially double the amount of leavening agent, leading to a cake that's too airy and potentially crumbly.

* Plain flour is just flour. It doesn't have any added ingredients like baking powder or salt. This means you can control the exact amount of leavening agent and other ingredients in your recipe.

Important Note: If you're out of plain flour and only have self-rising flour, you can use it! Just omit the baking powder from the recipe, as the self-rising flour already has it. However, keep in mind that the recipe may require adjustments to salt and other ingredients to compensate for the added leavening.