Cake flour is a finely milled flour with a lower protein content, which makes it perfect for creating light and airy baked goods. If you don't have cake flour on hand, you can make your own homemade Cake Flour using all-purpose flour and cornstarch. Here's a simple method:

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Ingredients in Homemade Cake Flour
Making your own homemade cake flour is simple and only requires two basic ingredients: all-purpose flour and cornstarch. Here's a closer look at each ingredient and why it's used:
- All-Purpose Flour:
- Quantity: 4 cups (480g)
- Purpose: This is the base ingredient for your homemade cake flour. It has a moderate protein content which provides structure to baked goods.
- Measurement: Use a spoon to fill your measuring cups with flour, then level them off with a knife to ensure accuracy. This method prevents the flour from being packed down, which can lead to using more flour than needed.
- Cornstarch:
- Quantity: 8 tablespoons (64g)
- Purpose: Cornstarch is added to lower the overall protein content of the flour mixture. This results in a softer, more tender texture in cakes and other baked goods.
- Measurement: Use a standard tablespoon to measure out the cornstarch. Level it off with a knife for precise measurement.

How To Make Cake Flour
Measure the Flour: Start with 4 cups (480g) of all-purpose flour. Use a spoon to fill your measuring cups, then level off with a knife. This prevents packing down the flour, ensuring accurate measurement.
Remove Some Flour: Take out 8 tablespoons (64g) of the measured flour. Removing some flour makes room for the cornstarch, which will lower the protein content.

Add Cornstarch: Replace the removed flour with 8 tablespoons (64g) of cornstarch. Cornstarch helps to lighten the flour, mimicking the low protein content of commercial cake flour.
Sift Together: Sift the flour and cornstarch mixture through a fine-mesh sieve into a large bowl. Sifting ensures even distribution of cornstarch and aerates the mixture, resulting in a light, fluffy texture.

Repeat: For best results, sift the mixture 2-3 times. This thorough mixing and additional aeration will help create a finer texture.
Store: Use your homemade cake flour immediately in recipes or store it in an airtight container for later use. Label the container with the date to keep track of freshness.

Fay's Top Tips
- Accurate Measuring: For precise results, use a kitchen scale to measure ingredients by weight.
- Double Batch: Make a larger batch by doubling or tripling the ingredients and store for future use.
Scalability
This recipe is scalable up or down in the same proportions. For example:
- To make a smaller batch, use 2 cups of flour (240g) and 4 tablespoons of cornstarch (32g).
- To make a larger batch, use 8 cups of flour (960g) and 16 tablespoons of cornstarch (128g).
Just remember to remove 2 tablespoons (16g) of flour for every cup (120g) of all-purpose flour and replace it with 2 tablespoons (16g) of cornstarch.
When to Use Homemade Cake Flour
Recipes Calling for Cake Flour: Whenever a recipe specifically calls for cake flour, use your homemade version. This ensures you achieve the intended texture and structure of the baked goods.
When Seeking a Light Texture: Use homemade cake flour in recipes where you want a light, tender crumb. It's particularly useful in baked goods that are meant to be airy and delicate. It would work great in our Red Velvet Cake recipe!
Substitute for All-Purpose Flour: You can substitute homemade cake flour for all-purpose flour in most recipes if you want a lighter texture. However, it's best for delicate baked goods. For sturdier recipes like bread or pizza dough, stick with all-purpose or bread flour.

Storage Tips for Homemade Cake Flour
- Airtight Container: Store your homemade cake flour in an airtight container to keep out moisture and pests.
- Cool, Dry Place: Keep it in a cool, dry place, like a pantry or cupboard, away from direct sunlight and heat.
- Label and Date: Label the container with the date you made it, so you know how long it's been stored.
Shelf Life of Homemade Cake Flour
Homemade cake flour will last as long as your all-purpose flour and cornstarch, typically 6-8 months in a cool, dry place.
For longer storage, consider refrigerating or freezing it, which can extend its shelf life to up to a year. Bring it to room temperature before using it in your recipes. If you notice any changes in smell, color, or texture, discard the homemade cake flour.
Cakes That Work Beautifully with Homemade Cake Flour
I use homemade cake flour in these recipes too, and it always gives the cakes a lighter texture and smoother finish.
- Chocolate Slab Cake - soft and rich with a smooth fudge frosting.
- Eggless Carrot Cake - moist and spiced with a creamy finish.
- Chocolate Dalgona Cake - light, airy, and topped with whipped coffee frosting.
Common Questions
You can substitute homemade cake flour for all-purpose flour in recipes where a lighter texture is desired. However, it's best for delicate baked goods like cakes, cookies, and muffins. For sturdier recipes like bread or pizza dough, stick with all-purpose or bread flour.
Cake flour has a lower protein content compared to all-purpose flour, resulting in a softer and more tender texture. It's also more finely milled, making it ideal for delicate baked goods.
No, homemade cake flour is not gluten-free since it's made from wheat-based all-purpose flour. For gluten-free baking, you'll need to use a gluten-free flour blend specifically designed for that purpose.
Cornstarch is essential for lowering the protein content of the flour mixture, which gives cake flour its unique properties. Without cornstarch, you won't achieve the same light and tender texture.
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How To Make Cake Flour
INGREDIENTS
- 480 g (4 cups) all purpose flour
- 64 g (8 tablespoon) cornstarch
INSTRUCTIONS
- Measure the Flour: Start with 4 cups (480g) of all-purpose flour. Use a spoon to fill your measuring cups with flour, then level them off with a knife.
- Remove Some Flour: Take out 8 tablespoons (64g) of the measured flour. This makes room for the cornstarch.
- Add Cornstarch: Replace the removed flour with 8 tablespoons (64g) of cornstarch. Cornstarch helps to lighten the flour, mimicking the low protein content of cake flour.
- Sift Together: Sift the flour and cornstarch mixture through a fine-mesh sieve into a large bowl. Sifting helps to evenly distribute the cornstarch and aerate the flour, ensuring a light and fluffy texture.
- Repeat: For best results, sift the mixture 3-5 times. This ensures that the cornstarch is thoroughly mixed with the flour.
- Store: Use immediately in your recipe or store in an airtight container for later use.
NOTES
Scalability:
This recipe is scalable up or down in the same proportions. For example:- To make a smaller batch, use 2 cups of flour (240g) and 4 tablespoons of cornstarch (32g).
- To make a larger batch, use 8 cups of flour (960g) and 16 tablespoons of cornstarch (128g).


Gloría Amparo García says
Muchas gracias por su valiosa información y por enseñarme a hacer que mis productos de pastelería tengan una mejor calidad y sabor. Gratitud infinita por siempre. Dios les bendiga grandemente 🙏💐
Fay says
Thank you for your kind words, Gloria! I'm honored my tips help your baking. Wishing you lots of success and blessings! 🙏
Gloría Amparo García says
Muchas gracias Fay, por tus enseñanzas y sabía explicación, gracias por enseñarme el manejo de la harina y la Maicena, este conocimiento hace que mis productos pasteleros obtengan mayor calidad y un delicioso sabor. Un gran abrazo lleno de bendiciones 😘
Fay says
I'm so happy this helped you, Gloria! It means a lot that my explanation improved your baking. Big hugs and blessings! 💖