How to Make Cake Flour

Have you ever wanted to start making a recipe and then realized, oh no. It calls for cake flour.

If all you have on hand is all-purpose flour, we’ve got you covered. I mean, unless that’s literally all you have on hand. In which case you can make uh… crackers?

Save yourself that extra trip to the store with this simple hack will create a cake flour substitute so you can get on your merry way making the cupcakes or the cake you want.*

What Is Cake Flour?

Cake flour is a finely ground flour that contains less gluten than all-purpose flour (6-8% vs 10-13%). It’s great for high-ratio cakes (cakes where the sugar is greater or equal in weight to the flour) since it’s lighter than all-purpose and when you bake with it, it produces goods with soft, tender layers and a lighter, finer crumb.

Because of its lower protein/gluten content it’s really big in Los Angeles. Kidding. It’s not. It’s still a carb. Also, don’t use it to make bread.

If you are going to use it in a recipe to replace all-purpose flour, it will change the final product, and I highly recommend weighing it. One cup of cake flour weights 4.5 oz, whereas one cup of cake flour weighs 4 oz.. (If you don’t have a scale yet, I spent $10 on this kitchen scale almost ten years ago and it still works.)

Cake Flour Brands

There are a handful of brands that make cake flour, but these are the most common. Let me know in the comments if you have a favorite and why!

• Swans Down
• Pillsbury Softasilk
• King Arthur Cake Flour – unbleached only
• Bob’s Red Mill Cake Flour – unbleached only

If you’re looking for a gluten-free cake flour, this one is well-reviewed, though I have not personally tried it.

How to Make a Cake Flour Substitute

Fluff your flour with a knife, spoon, or measuring spoon. Spoon the flour into your measuring cup and scrape off the excess with a flat edge (the back edge of a knife will do, but I’ve also used the other handle of the spoon).

Remove 2 tablespoons of flour for every cup you’re using.

Replace with 2 tablespoons of cornstarch. (2 cups = 4 tbsp. cornstarch. 1 cup = 2 tbsp. cornstarch.)

Whisk the cornstarch and flour together and sift the mixture five times so it is completely blended.

Doing this it helps prevent some of the gluten forming in all-purpose flour and creating a stiffer structure (that’s what gluten does – it creates a matrix that results in tough cakes but great bread. Whoa.). That’s because cornstarch and sugar absorb some the liquid in the recipe so the flour doesn’t hog all of it.

*Adding cornstarch will change the starch makeup of your cake and as Stella Parkes points out, it may end up absorbing too much moisture and be denser than you would prefer. So, I would recommend using this in a pinch, not as a way to never buy cake flour again. And probably not for an angel food cake.

Let’s Eat Cake Recipes With Cake Flour

• Lemon Blueberry Cupcakes
• Red Velvet Cupcakes
• Peanut Butter Chocolate Chip Cookies
• Pina Colada Cupcakes
• Zombie Cupcakes

5 from 6 votes

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How to Make a Cake Flour Substitute

If you need cake flour and don't have any on hand, here's how to make a cake flour substitute in a pinch!

Course Dessert

Cuisine American

Keyword cake flour

Prep Time 5 minutes

Total Time 5 minutes

Servings 1 cup

Calories 453 kcal

Author Rebecca Swanner

Ingredients

• 1 cup all-purpose flour
• 2 Tbsp. cornstarch

Instructions

1. Fluff flour with spoon and spoon into measuring cup. Scrape off excess with knife.
   

2. Pour into bowl and remove two tablespoons of flour. Place back in flour bin.
   

3. Add two tablespoons of cornstarch to flour.
   

4. Sift mixture five times.
   

5. Use as directed in recipe.
   

Recipe Video

Recipe Notes

Not recommended as an overall replacement — only when needed for a recipe and you can't get to the store!

Nutrition Facts

How to Make a Cake Flour Substitute

Amount Per Serving (1 cup)

Calories 453

* Percent Daily Values are based on a 2000 calorie diet.