Can I Reheat Oatmeal? Tips on Which Method Is Best

Oatmeal is such a heartwarming, soul-quenching staple food that you can truly eat at any time of the day. Especially when it is done right, cooked low and slow and paired with ingredients like apples, cinnamon, and brown sugar.

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Now, how to reheat it? That’s the real question. But don’t worry. We have all the answers.

Can You Reheat Oatmeal?

Can You Reheat Oatmeal

Now, you obviously want to know if it’s even possible to reheat oatmeal. Probably the most difficult part of reheating oatmeal is making sure it is cooked well the first time.

To make excellent oatmeal, just like when you reheat it, you will want to cook slow-cooked oats with water slowly over very low heat.

Stir regularly to get the oats to thicken up the liquid. It is also important to add salt to the water to bring out all the flavors you add in later. If you want to add apples, now is the time to do it, so they soften up as they cook in the oatmeal.

Don’t let the oatmeal thicken up too much so that when you want to reheat it, you won’t dry it out and end up with an overly thick, gummy dish.

So yes, you can reheat oatmeal. Honestly, you can reheat any food that has been leftover, refrigerated, or frozen. The trick is just to use the right approach with the right appliance.

For example, with foods that have been breaded or fried, you are probably best off reheating them in an oven or in an air fryer. Foods that have been baked or grilled are usually better reheated back in the oven or back on the grill.

With oatmeal, your best approach is likely going to be low and slow on the stovetop.

But let’s walk through each appliance just to be sure.

Should You Reheat Oatmeal?

Should You Reheat Oatmeal

Before we start talking about what to do with each appliance, let’s talk about whether we should even be doing this.

After all, we need to think about food safety, contaminants, and foodborne illnesses. If the oatmeal is dairy-free, you likely have nothing to worry about. It’s just oats and water.

But if your oatmeal has dairy in it, you might want to make sure you heat it up to 165 degrees Fahrenheit or higher to be sure you have gotten rid of all potential contaminants.

And, of course, you should always do your own research anytime you reheat leftovers, just to cover your bases. To get started, check out this article on reheating leftovers by Healthline

How to Reheat Oatmeal in the Oven

You might not think reheating oatmeal in the oven makes much sense, but the truth is it can be an excellent way to get your oatmeal back on the plate or in the bowl for breakfast or any meal or treat.

In fact, your best bet with oatmeal is to turn it into cakes.

  1. Form the cold oatmeal into pancakes and lay them on a greased baking sheet.
  2. Preheat the oven to 400 degrees Fahrenheit.
  3. Place the oat cakes in the oven and heat for 10 minutes until heated through.
  4. Now you can add toppings like you would your other mix-ins. Maybe even add bananas and a little maple syrup.
  5. Enjoy!

How to Reheat Oatmeal in the Microwave

I don’t love reheating oatmeal in the microwave, but it can be done if necessary.

  1. Place your oatmeal in a microwave-safe bowl and add a bit of water or milk and stir. The goal is to make the oatmeal nice and thin as it will thicken up during heating.
  2. Turn the microwave to medium power and heat the oatmeal for 30 seconds at a time.
  3. Stir in between heating.
  4. Once it is heated through (usually after a minute or so), serve with your favorite toppings and enjoy!

How to Reheat Oatmeal in an Air Fryer

Reheating oatmeal in an air fryer requires the same approach you would use in the oven, but this time, you’ll form balls instead of cakes.

  1. Form the oatmeal balls about the same size you would make a meatball in your hand, nice and thick.
  2. Preheat the air fryer to 400 degrees Fahrenheit.
  3. Add the oatmeal balls into the basket, separated so they’re not touching.
  4. Heat for 3-5 minutes until heated through.
  5. Serve with maple syrup and powdered sugar, or whatever you love most on oatmeal, and enjoy!

How to Reheat Oatmeal on a Grill

You’ll treat heating oatmeal on a grill the same way you would treat heating oatmeal on the stovetop.

  1. Preheat the grill to 350 degrees Fahrenheit or build a roaring open flame on a campfire.
  2. Place a stainless-steel pot on the fire and add your oatmeal.
  3. Add a bit of water or milk to thin it out then stir over the flame until it is heated through.
  4. Serve with your mix-ins and enjoy!

How to Reheat Oatmeal in a Toaster Oven

The toaster oven is like a mini oven, so you can treat reheating oatmeal the same way here that you would in the oven.

  1. Form your cold oatmeal into cakes and place them on a greased baking sheet.
  2. Preheat your toaster oven to 400 degrees Fahrenheit.
  3. Place the oatcakes in the oven and heat for about 5-10 minutes or until heated through.
  4. Serve with your favorite fixings and enjoy!

How to Reheat Oatmeal in a Pan on the Stove

Finally, you can reheat oatmeal in a pan on the stove just like when you cooked it the first time.

  1. Heat a stainless-steel pot on medium-low heat on the stove and add your oatmeal.
  2. Add a bit of water or milk to thin out the oatmeal and stir until it is heated through.
  3. Serve with your favorite ingredients and enjoy!

Winner! – The Best Way to Reheat Oatmeal Is Using the Stovetop

Look, there are so many great ways to reheat oatmeal, especially when you can get creative with cakes or balls.

But the best way, hands down, to reheat oatmeal and get it into its original shape is on the stovetop. It will heat it thoroughly without drying it out or gumming it up.

What do you think? Do you have a favorite way to reheat oatmeal? Let me know in the comments.

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