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Learn how to make quick oats from old-fashioned oats! This kitchen hack is great when you don’t have the right kind of oats needed for a recipe. It’s super easy to do and will save you a trip to the grocery store.

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Stainless steel cups of old fashioned and quick oats

Easy Kitchen Hack!

For years, I kept quick cook oatmeal and old-fashioned oats on hand because different recipes use one or the other. The worst was when I ran out of fast cook oats and had to run to the store in the middle of a recipe – it’s happened more times than I like to remember!

So, I’m reviewing all things oatmeal in this post – specifically, the difference between the two, substitutions, and the simple hack to make quick oats.

Can I Use Old Fashioned Oats Instead of Quick Oats?

It depends. Old fashioned oats give baked goods more texture but take longer to cook, which is why some recipes call specifically for quick oats. Quick cook oats are processed more, so they don’t have to cook as long.

In many cases, you can use the two interchangeably. But in some cases, a recipe will only work with quick cook oats. Hence why I kept both on hand for so many years!

Then I figured out you can make your own quick oats with old-fashioned oats, and life was changed forever! Okay, maybe that’s an overstatement, but yes, you can make quick cook oats out of regular oats, and it has saved me from making unnecessary trips to the store.

I’m showing you how to do it, plus sharing tips for substituting oats – I wish I’d known all of this years ago!

Overhead shot of old fashioned oats in a food processor

How to Make Quick Oats from Old Fashioned Oats

First, the hack. If you are making cookies that need quick cooking oatmeal, but you only have old-fashioned ones, here’s how you make it work:

Place your oats in a food processor. Pulse a few times to break them down. Give them a stir and pulse again, if needed. That’s all you do!

Overhead shot of old fashioned oats in a food processor after being processed

Use your DIY oatmeal in your recipe – just be sure to measure the amount you need after you’ve processed them.

Overhead shot of old fashioned oats in a food processor after being processed and cup of old fashioned oats next to it

Substituting Old Fashioned for Quick Oats

When it comes to old-fashioned oats vs. quick cook oats in baking,the best rule of thumb is to follow the recipe.

You can substitute old-fashioned for quick cook oats in many cases, and a well-written recipe should indicate this. If the recipe specifically calls for one or the other, stick to that for the best results.

Unfortunately, there’s no way to DIY old-fashioned ones, so those are the ones I usually keep on hand. That way, if I need quick oats, it’s just a few food processor pulses away to DIY it! Sometimes the simplest things can make a big difference in the kitchen, and DIY quick cook oats can be a total sanity-saver! If it saves a trip to the store, it’s a winner in my book. I hope you’ve found this post helpful!

Additional Baking Tips and Tricks

Stainless steel cups of old fashioned and quick oats

How to make Quick Oats from Old Fashioned Oats

5 from 14 votes
Different recipes call for different types of oats, but you no longer need to keep both in your pantry! Learn how to easily make quick cook oats from old-fashioned oats.
Prep Time 5 minutes
Total Time 5 minutes
Yield 1 cup
Serving Size 1 serving


  • 1 heaping cup old fashioned oats or any amount
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  • Place old fashioned oats in a food processor or blender. Pulse a few times in short bursts. Stir the oats and see if you need to pulse again.
  • Measure what you have left and use it in the recipe.

Recipe Nutrition

Serving: 1serving | Calories: 4kcal | Carbohydrates: 1g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 1mg | Potassium: 4mg | Fiber: 1g | Sugar: 1g | Calcium: 1mg | Iron: 1mg
Nutritional information not guaranteed to be accurate
Course Dessert
Cuisine American
Overhead shot of old fashioned and quick oats in measuring cups

Different recipes call for different types of oats, but you no longer need to keep both in your pantry! Learn how to easily make quick cook oats from old-fashioned oats.

Last Updated on May 20, 2022

Dorothy Kern

Welcome to Crazy for Crust, where I share recipes that are sometimes crazy, often with a crust, and always served with a slice of life.

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  1. What if I put in quick oats when it should have been old fashion oats. What can I do to correct it. Should I add some oldfashion on top of it?

  2. I just used the grinder on my 3 minute steel cut oats. It’s like fine powder now. Can I use this instead of the quick cook oats that my meatloaf recipe calls for?
    Thank you πŸ‘©β€πŸ³πŸ’

    1. Use the “oat flour” you’ve made to bake cookies/bread. I often substitute some of the purpose flour with oat flour to make healthier and more flavorful pancakes.

  3. Thx for the tip! Question for you-what should the texture be of the finished pulsed oats? Still grainy or fine? Thx so much 😊

      1. Thanks! Wish I knew this before I made a muffin recipe with β€œdusty” oats lol!

  4. I had to post this. I will make this recipe, as I make lots of your recipes. I watch you on Utube and love the way you explain things. No fuss, you say it as it is and so easy to follow. Thanks! Will post when I make the cookies.

  5. Would i still need to pulse the old fashioned oats if no baking is required? i plan on making no bake cookies with old fashioned oats someone had given me. Thank you, lori

    1. Yes – using old fashioned oats will make no bake cookies too dry unless they’re written for them.

      1. Thank you! I’m just going to make “No bake cookies” for my granddaughter and wondered about this.

  6. What happens when baked if I used quick oats instead of old fashioned oats like the recipe instructed to make the cookie dough?