How Do I Make All Purpose Flour

So, you’re staring at a recipe that calls for all-purpose flour, but your pantry just has... bread flour? Or maybe you’ve got a bag of whole wheat staring you down like a judgmental owl. Don’t panic. You can absolutely make your own all-purpose flour from other flours—and it’s easier than convincing your cat to get off the keyboard.

Wait, What Is All-Purpose Flour, Anyway?

Think of all-purpose flour as the Goldilocks of flours—it’s not too high in protein (like bread flour) and not too low (like cake flour). It’s the middle child of the flour family, but in a good way. It’s perfect for cookies, pancakes, and even the occasional overly ambitious pie crust.

The secret sauce is its protein content, which usually sits around 10-12%. That protein is what creates gluten, the stretchy stuff that gives bread its chew and cookies their structure. When you mix flours, you’re basically playing mad scientist to hit that protein sweet spot.

And don’t worry, you don’t need a chemistry degree. Just a measuring cup and a sense of adventure—or at least a sense of humor when things get floury.

How to Make It from Bread and Cake Flour (The Classic Hack)

This is the most common swap because, let’s face it, who only buys one type of flour? If you have bread flour (high protein) and cake flour (low protein), you can mix them to create an all-purpose clone.

Here’s the formula: for every 1 cup of all-purpose flour you need, combine ½ cup of bread flour with ½ cup of cake flour. That’s it. No abracadabra required.

Whisk them together like you’re conducting a tiny flour orchestra. The bread flour brings the structure; the cake flour brings the tenderness. Together, they’re the buddy comedy of the baking world.

But What If I Only Have Bread Flour?

No problem! You can tone it down by adding a little cornstarch—the ninja ingredient that softens everything. For every 1 cup of bread flour, remove 2 tablespoons of it, then add 2 tablespoons of cornstarch.

Sift it all together to make sure it’s evenly mixed. Think of the cornstarch as the chill friend who tells the protein-rich bread flour to calm down, dude.

This works because cornstarch has almost zero protein, dragging the overall percentage down into all-purpose territory. Baking science, baby!

What About Whole Wheat Flour? (The Healthier Cousin)

Whole wheat flour is the earnest relative who always brings a kale salad to the party. It’s packed with fiber and flavor, but it’s also dense and thirsty—it absorbs more liquid than all-purpose.

To make a whole wheat-based all-purpose substitute, use ½ cup whole wheat flour and ½ cup all-purpose (or bread/cake mix if you’re resourceful). This gives you the nutty goodness without turning your cookies into hockey pucks.

And here’s a pro tip: let your batter or dough rest for 15–20 minutes before baking. The whole wheat needs time to hydrate, like a sponge that’s been on a desert vacation.

Can I Use Just Whole Wheat Flour Straight Up?

Technically yes, but your baked goods will be dense, heavy, and possibly weapon-grade—perfect for self-defense, less perfect for muffins. Mixing it with a lighter flour is like adding helium to a brick; it just makes everything float better.

If you’re feeling brave and only have whole wheat, add an extra tablespoon of liquid per cup of flour. Your dough might look a bit worried at first, but it’ll relax. Trust the process.

The Gluten-Free Option (For When You’re Out of Wheat)

If you’re gluten-free or just pretending because a friend is coming over, you can make a DIY all-purpose blend from rice flour, tapioca starch, and potato starch. The magic ratio is: 2 parts white rice flour, 1 part tapioca starch, and 1 part potato starch.

Mix them in a big bowl and store it in an airtight jar. It’s like assembling the Avengers of flours—each one brings a superpower (lightness, chew, flavor) to the team.

Just remember: gluten-free flours absorb more liquid, so you might need to add an extra egg or a splash of milk. And no, your cake won’t taste like cardboard unless you forgot the sugar. Been there, done that, wrote a sad poem about it.

The Lazy Baker’s Method (No Mixing Required)

If you’re out of all-purpose and your kitchen looks like a flour crime scene, just use bread flour and accept the slightly chewier result. Seriously, 90% of people won’t notice, especially if you’re making cookies or brownies.

Or use cake flour and enjoy the most delicate, crumbly shortbread known to humankind. The rule is: bread flour makes it chewy, cake flour makes it tender. Both are delicious; neither will end your baking career.

And if you’re really in a pinch? Just stare at the recipe, sigh dramatically, and order takeout. We’ve all been there, and pizza is basically bread, which is basically flour. You’re welcome.

A Few Final Flour Fun Facts (Because Why Not)

Always sift your homemade blends to avoid pockets of pure cornstarch or bread flour. Nobody wants a surprise gluten explosion in their muffin.

Store your mixed flour in an airtight container and label it. Future you will thank present you, especially after three glasses of wine at 11 p.m. when you’re baking “just one more batch of cookies.”

Also, remember that measuring by weight (using a kitchen scale) is way more accurate than scoops. But if you’re like me, a scoop is fine—just don’t tell the baking purists. It’ll be our little secret.

So, there you have it. You can absolutely make all-purpose flour from whatever you have on hand. Mix, sift, and bake like the resourceful kitchen hero you are. And if your first attempt doesn’t turn out perfect? That’s okay. The best thing about flour is that it’s cheap, forgiving, and always ready for a second chance.

Go forth, flour warrior. You’ve got this. And if all else fails, just call it a “rustic texture” and nobody will ever know the difference. Happy baking—you amazing, flour-dusted human, you.