How to Make Homemade Cake Flour

Learn to make homemade cake flour. It’s very easy and cheaper than buying it at stores. You only need 2 ingredients: all purpose flour and cornstarch!

how to make homemade cake flour

What is Cake Flour?

It’s a low protein flour that’s typically used in baking and especially cakes to give it that wonderfully firm but soft texture. This is typically the flour that is used in fancy bakeries.

Cake Flour is Better Homemade!

My Aunt (who is a fabulous baker, by the way!) taught me how to make DIY cake flour with all-purpose flour at home because it’s a little expensive to buy at stores.

As an experiment, I made my favorite vanilla cupcakes with store-bought and homemade cake flour and they BOTH looked the same and tasted the SAME!

cake flour substitute in measuring cup

Only 2 Cake Flour Ingredients!

  1. All purpose-flour
  2. Cornstarch

The key is SIFTING! You need to sift these 2 ingredients multiple times because it allows the cornstarch and flour to mix together thoroughly.

spoonful of homemade cake flour

Cake Flour vs All-Purpose Flour

The main difference is the protein content. Cake flour has a lower protein content than all-purpose flour and that results in a light, airy and fluffy cake texture.

homemade cake flour on table with spoon

Other Baking/Cake Decorating Tips

Well, that’s all for today.

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Homemade Cake Flour Recipe

Prep Time: 10 mins
Total Time: 10 mins
Learn to make homemade cake flour. It's very easy and cheaper than buying at stores. You only need 2 ingredients: all purpose flour and cornstarch!
Yield: 1 cup


  • 1 cup All-purpose flour
  • 2 tbsp Cornstarch


  • Measure out 1 cup of all purpose flour.
  • Remove 2 tablespoons of all-purpose flour from your cup and dump it back into your flour bag.
  • Now, add 2 tablespoons of cornstarch into your cup of all purpose flour.
  • Sift once.
  • Sift twice.
  • Sift thrice.
  • Sift again.
  • And sift one last time!


  • DON'T skip the sifting! 
  • Store this in a sealed container away from humidity at room temperature. 
  • Recipe can easily be doubled or tripled. 


Calories: 515kcal, Carbohydrates: 109g, Protein: 12g, Fat: 1g, Sodium: 3mg, Potassium: 133mg, Fiber: 3g, Calcium: 19mg, Iron: 5.8mg
Course: Dessert
Cuisine: American
Calories: 515
Author: CakeWhiz

Until next time, tata my lovelies.

54 comments on “How to Make Homemade Cake Flour”

  1. Would this work with gluten free flour with xanthum gum? Thank you!

  2. Thank you for this5 stars

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