Self-rising Flour: What Is It and When to Use It

If you’ve spent any time baking from Southern recipes, you’ve almost certainly run across self-rising flour. It shows up in biscuit recipes, quick breads, and pancake batters, and if you’ve ever tried to substitute all-purpose flour without adjusting the recipe, you know something went noticeably wrong. Understanding what self-rising flour is and how it works will make you a more confident and consistent baker.

What is self-rising flour?

Self-rising flour is simply all-purpose flour with two ingredients already mixed in: baking powder and salt. That’s the whole secret. Most commercial self-rising flour contains about 1 1/2 teaspoons of baking powder and 1/4 teaspoon of salt per cup of flour.

The leavening and seasoning are already built into the bag, which means you do not have to measure and add them separately when you bake.

A distinctly Southern staple

Self-rising flour has a long history in Southern kitchens, and that history has everything to do with biscuit making. White Lily, the flour brand most closely associated with Southern baking, introduced a self-rising version in the early 20th century, and generations of Southern home cooks built their biscuit recipes around it. The convenience factor was real, especially for cooks who made biscuits every single morning and did not want to measure out leavening each time.

Southern flour also tends to be milled from soft winter wheat, which has a lower protein content than the hard wheat used in most all-purpose flours. That lower protein content produces more tender baked goods, which is part of why Southern biscuits and cakes made with self-rising flour have that characteristic soft, delicate crumb. If you are shopping for self-rising flour and want the most authentic results, look for a Southern-milled brand.

When should you use it?

Self-rising flour shines in quick, tender baked goods where you want a light texture without a lot of fuss. It is particularly well-suited to:

• Biscuits. This is where self-rising flour works well. The combination of the soft wheat flour and the pre-measured leavening gives you consistently fluffy, tender biscuits without having to calibrate your measurements every time.
  • Note: I had my family do a taste test, and we could barely taste any difference between biscuits made with all-purpose and self-rising flour. However, there was just enough difference that I prefer all-purpose when I have time — but I will serve biscuits made with self-rising flour any day of the week.
• Pancakes and waffles. A batter made with self-rising flour produces a light, airy result with minimal effort.
• Quick breads and muffins. Cornbread, banana bread, and similar recipes often call for self-rising flour because it simplifies the process and produces a reliable lift.
• Coatings for fried foods. Many Southern cooks use self-rising flour for frying chicken or fish because the baking powder in the flour helps create a lighter, crispier crust.
• Simple cakes, dump cakes, and cobblers. Recipes that call for self-rising flour, like my Peach Cobbler, often have very short ingredient lists, and the built-in leavening is a big part of why they work.

When not to use it

Self-rising flour is not a universal substitute for all-purpose flour. In recipes that call for yeast, the extra leavening agents will interfere with the process and give you unpredictable results. In recipes that require precise control over leavening, such as layer cakes with a specific rise, it is better to use all-purpose flour and measure your baking powder separately.

And because self-rising flour already contains salt, using it in a savory recipe without adjusting the salt level can leave your dish overseasoned.

How to make your own

If a recipe calls for self-rising flour and you only have all-purpose on hand, you can make a quick substitute. For each cup of all-purpose flour, add 1 1/2 teaspoons of baking powder and 1/4 teaspoon of salt, then whisk them together thoroughly before using. It’s a reliable swap in most recipes, though you may notice a slight difference in texture if you’re using a higher-protein all-purpose flour rather than a soft wheat variety.

One important note on shelf life: Because self-rising flour contains baking powder, it does not keep as long as plain all-purpose flour. The leavening begins to lose its effectiveness over time, even in a sealed container.

Write the purchase date on your bag, and try to use it within six months to a year for the best results. If you store it for a long time and your biscuits are not rising the way they should, stale leavening is likely the culprit.