

Cake flour is the low-protein (5-8%) flour designed for tender, delicate baked goods. The lower protein content means less gluten development, which produces softer, finer-crumbed finished cakes. It’s the right choice for angel food cake, chiffon cake, traditional layer cakes, and most American Southern biscuits. Cake-flour favorites include Perfect Unicorn Cakes, Lemon Raspberry Muffins, and Chocolate Chip Muffins where the low protein content produces the tender crumb that all-purpose flour cannot replicate.


Cake flour and all-purpose flour are not interchangeable in tender bakes. Cake flour is 5-8% protein; all-purpose is 9-12%; bread flour is 12-14%. The protein difference produces noticeable texture differences in finished cakes. Substituting all-purpose for cake flour produces a denser, slightly tougher cake; substituting cake flour for all-purpose in cookies produces excessively crumbly results.
Homemade cake flour substitute: for 1 cup cake flour, combine 7/8 cup all-purpose flour + 2 tablespoons cornstarch, sift together 3-4 times. The cornstarch lowers the protein percentage; the multiple siftings ensure even distribution. The substitute works in most cake recipes but produces results slightly less tender than real cake flour.
For tender layer cakes, cake flour is the difference between bakery-quality and home-baker results. The standard butter cake recipe is 3 cups cake flour + 1 cup butter + 2 cups sugar + 4 eggs + 1 cup milk + 1 tablespoon baking powder + 1 teaspoon salt + 2 teaspoons vanilla extract. Cream butter and sugar, add eggs, alternate dry and wet, bake at 350°F for 25-30 minutes per layer.
For angel food cake (the meringue-based dessert), cake flour is non-negotiable. The fluffy, cloud-like texture requires the low-protein flour combined with whipped egg whites. The standard recipe is 1 cup cake flour + 1 1/2 cups sugar + 12 egg whites + 1 1/2 teaspoons cream of tartar + 1 teaspoon vanilla. Bake at 350°F in an ungreased angel food pan for 35-40 minutes. For storage, cake flour keeps 1 year sealed in a cool dry pantry. Other reader picks that build on cake flour include Egg Free Cottage Cheese Muffins and Why Muffins stick to liners?. Browse all-purpose flour, baking powder, and salt for closely related cooking applications.
To make a cake using cake flour, combine cake flour with sugar, eggs, butter, and leavening agents like baking powder. Mix the ingredients until smooth, pour into a pan, and bake according to the recipe for a soft and fluffy texture.
Cake flour is commonly used in recipes like sponge cakes, layer cakes, cupcakes, chiffon cakes, and some cookies. It helps create a light and tender texture in baked goods.
A common substitute for cake flour is a mixture of all-purpose flour and cornstarch. For every cup of cake flour, use 1 cup of all-purpose flour minus 2 tablespoons, then replace those 2 tablespoons with cornstarch.
Cake flour has the lowest protein content, which makes baked goods soft and tender. All-purpose flour has a moderate protein level, making it versatile for many recipes. Bread flour has the highest protein content, which creates more structure and chew, ideal for breads.
For more specialty flour and baking-grain options, see our almond flour and gluten-free flour recipes.