How to Make Self-Rising Flour. Making self-rising flour at home is easy. Just use this basic formula: For every 1 cup of all-purpose flour, add 1 1/2 teaspoons baking powder and 1/4 teaspoon fine salt.
Combine 1 cup of plain flour and 2 teaspoons of baking powder in a glass bowl and mix together.
For every cup of self-rising flour, substitute one cup of all-purpose flour, 1 teaspoon baking powder, ½ teaspoon salt, and ¼ teaspoon baking soda.
For every cup of self-raising flour called for in your recipe, measure out 1 level cup (125 grams) all-purpose flour. Add 2 tsp. (8 grams) baking powder. Whisk to combine.
If you only have plain flour, you can make it into self-raising flour by adding 2 teaspoons baking powder to every cup (150g) of plain flour, and then sifting this mixture a few times to distribute the baking powder through the flour evenly.
A good rule of thumb, according to Corriher, is that 1 cup of flour can be leavened by ¼ teaspoon baking soda or 1 to 1¼ teaspoons of baking powder.
For example, if a recipe calls for 2 cups of self-rising flour, you would mix together 2 cups of all-purpose flour, 3 teaspoons baking powder, and ½ teaspoon salt. What is this? You can also scale the recipe up to make a larger batch of DIY self-rising flour and store it for later use.
As we mentioned before, the self rising flour mixture is often somewhere around: 1 cup All-Purpose Flour. 1 1/2 teaspoons Baking Powder. 1/4 teaspoon Fine Salt.
Baking powder: Add 1 ½ teaspoons baking powder for its leavening effect. This will take your flour from "all-purpose" to "self-rising." Salt: Finish off this self-rising flour recipe with ½ teaspoon salt.
If a recipe calls for self-raising flour it is doing so because it is relying on the raising agents in that flour to make the baked good 'rise'. If you use plain flour instead and don't add any raising agents you will most likely end up with a very flat, dense bake!
If you've used self-raising flour, the lump of dough will expand and just about double in size.
Self-raising flour has a specific ratio of flour to baking powder. To replicate self-raising flour the proportion is approximately 1 tsp baking powder: 150gm (1 cup) of plain flour.
So if a recipe calls for 250g of self-raising flour, and you only have plain, you need 5% of that 250g to be baking powder. That's 12.5g of baking powder. So 12.5g BP added to 237.5g plain flour makes 250g stand-in self-raising flour.
Use the ratio of 2 teaspoons of baking powder to every 1 cup / 150g / 6 oz of plain flour to make either a small batch or a bulk batch of self raising flour.
While it's similar to all-purpose flour, self-raising flour isn't as rich in protein as all-purpose flour. Also like all-purpose flour, self-rising flour is enriched with added nutrition. It also contains salt and baking powder that has been distributed evenly throughout the flour and acts as a leavening agent.
To create self-raising flour from plain flour - for 150g/1 cup plain flour use half-teaspoon baking powder and half-teaspoon of bicarbonate soda (also known as baking soda).
To make self-raising flour add one teaspoon of baking powder (or equivalent homemade) to 110g plain flour.
Bicarb soda (bicarbonate soda) or bicarb of soda are different names for the same thing. In the U.S. it is known as baking soda.
Using too much baking soda or baking powder can really mess up a recipe, causing it to rise uncontrollably and taste terrible.
To make your own self raising flour combine plain flour with baking powder or make your own baking powder. Measure the flour and baking powder into a bowl and stir to combine. Sieve the flour blend into another bowl. Use this flour blend as self raising flour.
Self-rising flour does not contain baking soda so if you are using self-rising flour and the recipe calls for baking soda be sure to add it.
Adding too much extra leavening in the hope of making something rise more can actually have the opposite effect. If there is too much leavening in the cake then as the cake bakes the it rises up too much and then falls back very quickly as the cake cools, leaving a sunken cake with a very wrinkled surface.