Learn how to make your own cake flour substitute with just two simple ingredients. This easy substitute is perfect for cakes, cupcakes, and so much more!

A copper measuring cup filled with cake flour and a container of flour in the background.

What is Cake Flour? 

Let’s be honest, there’s nothing more frustrating than realizing you’re missing an ingredient in the middle of baking. I recently shared an easy homemade buttermilk substitute with you, so today I want to share another substitute — homemade cake flour.

Cake flour vs. regular flour. Cake flour is made from soft wheat and is much finer than all-purpose flour. The main difference between the two is the protein content, cake flour usually has about 7-9% and all-purpose flour can have anywhere from 10-12%.

The lower protein content means that it forms less gluten as you’re mixing everything together, which results in a softer and lighter texture. This makes it perfect for recipes where you want a lighter texture, like with cakes and cupcakes.

So today, I’m showing you how to make your own with just two ingredients. And I bet you probably have both ingredients on hand right now!

A container of cake flour and cornstarch sitting on top of a marble surface.

Recipe Ingredients 

To make your own cake flour substitute you’ll need two ingredients: all-purpose flour and cornstarch. If you live outside of the US, then you’ll probably need to look for cornflour, which is the same thing as cornstarch.

Also, this cake flour recipe and tutorial will make about 1 cup. If you need more or less, just scale the recipe up or down as needed.

A small glass bowl filled with all-purpose flour and a copper measuring tablespoon in the background.

How to Make Cake Flour 

To start, you’ll measure out one cup of all-purpose flour. One important thing to remember for this step is that you need to spoon your all-purpose flour into the measuring cup then level it off with the back of a knife. 

If you scoop your flour from the container, it can become packed inside the cup and you can end up with WAY too much flour.

Then, remove two tablespoons of the flour and add it back to your flour bag or container. Next, replace the two tablespoons of flour with two tablespoons of cornstarch (or cornflour).

A glass bowl filled with all-purpose flour and two tablespoons of cornstarch.

Why cornstarch? The cornstarch inhibits some of the gluten formation, which results in a softer baked good.

Once you’ve added the cornstarch, whisk it into the flour until well combined and sift the mixture 4-5 times. This will help aerate the flour and incorporate the two together really well.

Then, measure out the amount of cake flour needed in your recipe by spooning the sifted flour into your measuring cup and leveling it off with the back of a knife. 

A clear glass bowl filled with sifted homemade cake flour.

How to Substitute Cake Flour for All-Purpose Flour

You can use this DIY substitute for any recipe that calls for cake flour. You can use it as a 1:1 substitute. If the recipe calls for all-purpose flour, you’ll want to use 1 cup + 2 tablespoons cake flour in place of 1 cup of all-purpose flour.

Can I Prep a Big Batch in Advance? 

Yes! You can multiply this recipe as needed to make a big batch. Store it in an airtight container and use whenever a recipe calls for cake flour. 

Different Ways To Use It

Here are a few ways that you can use this cake flour substitute. 

A close-up picture of a copper measuring cup filled with cake flour.

Homemade Cake Flour

5 from 2 ratings
Prep Time: 10 mins
Total Time: 10 mins
Learn how to make your own cake flour substitute with just two simple ingredients. This easy substitute is perfect for cakes, cupcakes, and so much more!

Ingredients

Servings: 1 cup
  • 3/4 cup + 2 tablespoons (110 grams) all-purpose flour , spooned & leveled
  • 2 tablespoons (15 grams) cornstarch (or cornflour)

Instructions
 

  • Place the flour and cornstarch in a mixing bowl and whisk until well combined. Sift the mixture together 4-5 times, then measure out the amount of cake flour called for in your recipe by spooning it into a measuring cup and leveling it off with the back of a knife.

Notes

To make this recipe easier, you can measure out 1 cup of all-purpose flour and remove two tablespoons.
Always make sure to measure the flour needed in your recipe after sifting it.
Cuisine: American
Course: Dessert
Author: Danielle
Did you make this recipe?Mention @livewellbakeoften on Instagram or tag #livewellbakeoften.