How to Make Oatmeal

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Learn how to make oatmeal that isn’t mushy or runny with my fail-proof method – plus four flavor combinations! Once you know how to cook oatmeal perfectly your breakfast game will be forever changed.

a bowl of oatmeal with sliced bananas and cinnamon. There's a spoon and a cinnamon stick in the oatmeal and it's surrounded by other bowls of oatmeal and ingredients.

We eat oatmeal at least once a week for breakfast, and over the years I’ve mastered the art of how to cook oatmeal so it is not soggy or soupy, but soft with a perfect texture.

This method is for people who don’t like their oats liquidy. We use a 1:1 ratio of water to oats, which results in a thick but still soft and moist, perfectly cooked oatmeal. Plus, I’ve included 4 flavor combinations – apple cinnamon, peanut butter & honey, maple brown sugar and banana nut.

This recipe makes enough to feed 6 to 8 people (since I have a large family). It’s very easily scalable since it’s a 1:1 ratio of water to oatmeal.

a bowl of cooked oatmeal with peanut butter and honey on top with a silver spoon taking a scoop
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How to Make Oatmeal: Ingredients & Substitutions

overhead photo of the labeled ingredients in this how to make oatmeal post including old fashioned oatmeal, water, salt and mix ins.
  • Old-fashioned oatmeal. You can use quick cooking oatmeal as well. Steel cut oatmeal has a different cooking method so I don’t suggest that as a substitute here.
  • Water. You can cook the oatmeal in milk if you’d prefer. Or half water, half milk.
oatmeal in a bowl with apples, cinnamon and a cinnamon stick. A hand is holding a silver spoon taking a bite.

How to Make Oatmeal

Begin by bringing four cups of water (32 fluid ounces) to a boil. It’s important to measure the water in a glass measuring container used for measuring liquids like this pyrex measuring cup.

water being poured into a pot showing how to make oatmeal

Then, add 4 cups of oatmeal (measured in standard measuring cups) which comes out to be about 340 grams to the boiling water and stir.

Return the mixture to a boil and boil for 1 minute.

Then, turn off the heat and cover the pot of oatmeal. Let it sit, covered on the warm burner for 10 minutes.

After 10 minutes, use a wooden spoon to stir the oatmeal and fluff it up in the pot.

Then transfer the cooked oatmeal to bowls and serve it warm with your favorite toppings. Often, my kids will just choose brown sugar and a sprinkle of chocolate chips. Or, try these flavors.

cooked oatmeal in a bowl with a silver spoon

Oatmeal Toppings

I created four flavors for you to enjoy. Each one is made individually, with 1 cup of cooked oatmeal.

Maple Brown Sugar is made by mixing 1 Tablespoon brown sugar, 1 Tablespoon maple syrup, ¼ teaspoon cinnamon and a pinch of salt into 1 cup warm, cooked oatmeal.

showing how to make oatmeal flavors - brown sugar and maple syrup on top of oatmeal in a bowl

Make Peanut Butter & Honey oatmeal by adding 1 Tablespoon peanut butter, 1 Tablespoon honey, a dash of cinnamon and pinch of salt to 1 cup of warm oatmeal.

showing how to make oatmeal flavors - peanut butter and honey on top of cooked oatmeal in a bowl

Make Apple Cinnamon oatmeal by stirring in ½ small, finely diced apple, 1 Tablespoon brown sugar ¼ teaspoon cinnamon and a pinch of sea salt into 1 cup warm oatmeal.

showing how to make oatmeal flavors, apples, brown sugar and cinnamon on top of cooked oatmeal in a bowl

And make Banana Nut oatmeal by mixing in 1 sliced banana, a pinch of cinnamon and a tablespoon of honey into 1 cup of cooked oatmeal.

showing how to make oatmeal flavors, banana, walnut and honey on top of cooked oatmeal in a bowl

Serve

Serve the oatmeal warm with one of these topping combinations, or with your favorite toppings. I love making one batch of cooked oatmeal for my kids and letting them choose their own toppings – so breakfast feels customized but I really only have to cook one dish.

I often serve oatmeal with some cottage cheese scrambled eggs and one of our favorite smoothie recipes.

cooked oatmeal in a bowl with apples, cinnamon and a cinnamon stick. A hand is holding a silver spoon taking a bite.

Store/Freeze

Store cooked oatmeal without toppings (or with, but we prefer to store it without), in an airtight container in the refrigerator for up to 5 days or in the freezer for up to 1 month. Reheat in the microwave or on the stovetop.

oatmeal in a bowl with, cinnamon and a cinnamon stick. A hand is holding a silver spoon taking a bite.

How to Make Oatmeal FAQS

What type of oats should I use for oatmeal?

I suggest old-fashioned or rolled oats for the best results. Quick-cooking can also be used.

What’s the best water-to-oats ratio?

I personally believe it’s a 1:1 ratio of water to oatmeal and have been making it this way for many years.

Should I use water or milk?

I use water, but you can use either. Water, milk or a mix of water and milk.

Can I make oatmeal ahead of time?

Yes! Cooked oatmeal lasts up to 5 days in the refrigerator. Reheat with a splash of water or milk on the stovetop or in the microwave.

oatmeal in a bowl with bananas, cinnamon and a cinnamon stick. A hand is holding a silver spoon taking a btie.

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How to Cook Oatmeal (Stovetop)

Laura
Learn how to make oatmeal that isn't mushy or runny with my fail-proof method – plus four flavor combinations! Once you know how to cook oatmeal perfectly your breakfast game will be forever changed.
No ratings yet
Course Breakfast
Cuisine American
Servings 8 Servings
Calories 83
Cook Time10 minutes
Total Time8 minutes

Video

Ingredients 
 

Flavor Variations – 1 cup cooked oatmeal mixed with:

Apple Cinnamon

Peanut Butter & Honey

Maple Brown Sugar

Banana Nut

Instructions 

  • Bring 4 cups of water to a boil.
  • Add the oatmeal and stir.
  • Return the mixture to a boil and boil for 1 minute.
  • Turn off the heat, and cover.
  • Let sit for 10 minutes, covered on the warm burner.
  • After 10 minutes, stir/fluff with a wooden spoon.

To Make Flavors

  • Stir your desired flavor combination's ingredients into 1 cup of warm, cooked oatmeal. Then serve warm.

Notes

*Nutrition facts calculated for 1 cup of cooked oatmeal alone! No toppings. 
Ingredient Notes/Substitutions
  • Old-fashioned oatmeal. You can use quick cooking oatmeal as well. Steel cut oatmeal has a different cooking method so I don’t suggest that as a substitute here.
  • Water. You can cook the oatmeal in milk if you’d prefer, or use half milk half water. 
Store/Freeze
Store cooked oatmeal without toppings (or with, but we prefer to store it without), in an airtight container in the refrigerator for up to 5 days or in the freezer for up to 1 month. Reheat in the microwave or on the stovetop.

Nutrition

Serving: 1cup | Calories: 83kcal | Carbohydrates: 14g | Protein: 3g | Fat: 2g | Saturated Fat: 0.4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 0.001g | Sodium: 11mg | Potassium: 82mg | Fiber: 2g | Sugar: 0.3g | Calcium: 14mg | Iron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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