How to Cook Any Kind of Oatmeal – The Ultimate Guide

On a cold winter morning, there’s no better way to begin the day than with a comforting hot bowl of oatmeal. But deciding which kind of oatmeal to make – traditional, steel-cut, quick cook, instant – shouldn’t be taxing your brain when you’ve just got out of bed. So, if you are confused about the different kinds of oats and how to cook oatmeal with them, this guide will explain everything you need to know.

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Before we go into the differences, let’s begin by talking about what the different kinds of oatmeal have in common. Number one, they’re all good for you. Oatmeal is a whole-grain food that’s low in cholesterol and saturated fat, a good source of fiber, and may help to reduce the risk of heart disease. All oatmeal is made from oats that begin as kernels of grain (groats) that are then processed into different varieties. It’s this variation in the processing method that determines the type of oatmeal. So, let’s take a look at oats in their several different varieties.

a bowl of uncooked steel cut oats

Steel-Cut Oats

Steel-cut oats are also called Pinhead oats or Irish oats. Instead of being rolled, these oats are chopped into small pieces and have a rough texture before they are cooked. They take much longer to cook (about 20-30 minutes) than old fashioned oats. If you like chewier oatmeal, steel-cut is the way to go.

a bowl of uncooked old fashioned oats

Old Fashioned Oats

Old Fashioned oats are also known as rolled oats because of the way they are made. The rolling process flattens the oats and makes them flakey. They are able to absorb more water and cook more quickly (in about 5 minutes) than steel-cut oats. Apart from oatmeal, old fashioned oats are a good choice for muffins, granola bars, and cookies.

A bowl of uncooked quick cook oats

Quick Cook Oats

These oats are thinner and more finely chopped than rolled oats. If you are in a rush, these oats will cook in only one minute on your stovetop. They can also be microwaved.

A bowl of uncooked Instant

Instant Oats

These oats come in convenient individual packages and are great for stowing away in your desk at work. Simply add liquid and pop them in the microwave. They are also great for camping trips (cook them on your camping stove).

a bowl of uncooked oat bran

Oat Bran

During processing, the outer layer of the oat (the bran) is removed to help the oatmeal cook faster. However, when the outer husk is finely milled, it turns into a highly-concentrated oat bran that actually cooks up really quickly. Apart from a delicious breakfast, it’s also good in muffins, cakes, and bread.

How to Cook the Different Kinds of Oats

Whichever type of oats you are using, you can’t go wrong if you give them the time they need to cook. If time in the mornings is tight, you can use old-fashioned oats to make overnight oats. You can also put steel-cut oats in your slow-cooker and let them cook while you’re asleep. You can use just water (with a pinch of salt if you like), milk, or a combination of water and milk. For simplicities sake, the term “liquid” will be used in talking about how to cook oatmeal. After cooking, cover the pan and let the oatmeal sit for 2-3 minutes.

How to Cook Oatmeal on the Stovetop – great for steel-cut and old fashioned.

Steel-Cut Oatmeal – Bring 1 cup of liquid to a boil, add 1/4 cup of oatmeal and reduce heat to low. Simmer, stirring occasionally, for about 20-30 mins. Yes, steel-cut oats take longer to cook, but they’re worth it. You get a texture that is simultaneously delicious, creamy, and chewy. Note that with steel-cut, you use a lower ratio of oats to liquid than for other types of oats.

Old Fashioned Oatmeal – Bring 1 cup of liquid to a boil, add 1/2 cup of oats and reduce heat to medium. Cook, stirring occasionally, for about 5 mins for a slightly textured oatmeal.

Quick Cook Oatmeal – Bring 1 cup of liquid to a boil, add 1/2 cup of oats and simmer on the stovetop, stirring occasionally, for about 1 min for soft and smooth oatmeal.

Instant Oatmeal – For a single serving, measure 1/3 cup instant oats into a bowl. Add up to 1/2 cup boiling liquid and stir. Nothing could be easier!

How to Cook Oatmeal in the Microwave

The use of your microwave for making oatmeal is best suited for quick or instant oats. Mix 1 cup of liquid with 1/2 cup of oats in a 2-cup microwavable bowl. Microwave on high for 1-1/2 to 2 minutes. Stir before serving.

Oat Bran – Bring 1-3/4 cups of liquid to a boil, add 1/2 cup of oat bran and simmer on the stovetop, stirring occasionally, for about 2-3 mins for a creamy, almost sweet oaty richness. This type of oatmeal has the most fiber in it of all types of oatmeal. If you want to increase your daily fiber intake and stay full through lunch, this is a great choice for breakfast. The flavor is so lovely that you may find you don’t need to add sweeteners. If you want to try an oat bran breakfast.

How to Store Your Oats

Oats keep really well. Store them in an airtight container in a cool, dark spot in your pantry for up to twelve months. Also, you can check the “Best if Used By” or “Best By” date on the package.

Where to purchase

Most of these different types of oatmeal can be purchased at your grocery store. It may be harder to find steel-cut oats and oat bran. Here are a few types of oatmeal I prefer, and ones that I regularly purchase.
Bob’s Red Mill Steel Cut Oats
Bobs Red Mill Quick Cooking Oats
Bob’s Red Meal Oat Bran

Making Oatmeal Ahead of Time

It’s easy to make a pot of oatmeal when you have time. Then just pop it in your fridge for a whole week of easy breakfasts. Just scoop out a portion, add a splash of milk and reheat on the stovetop or in a microwave. Here are some copykat oatmeal recipes for you to try and a couple of other interesting links:
Overnight Oats Recipe
Big Batch Multi-Cooker Cinnamon and Oatmeal
How to Make Oatmeal from Scratch

A bowl of oat bran porridge with walnuts and blueberries

Oat Bran Porridge

Start your day off with a delicious bowl of oat bran porridge.
5 from 1 vote
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Course: Breakfast
Cuisine: American
Keyword: oat bran, Oatmeal
Servings: 2
Calories: 239kcal

Ingredients

  • 2/3 cup oat bran
  • 1 cup water
  • 1 cup milk
  • 1/4 teaspoon salt

Optional Mix-ins

  • 1/2 teaspoon cinnamon
  • 2 tablespoons walnuts

Instructions

  • Bring water, milk, and salt to a boil.
  • Stir in oat bran cereal and cook approximately 3 minutes.
  • Serve in bowls and sprinkle cinnamon and nuts on top.

Nutrition

Calories: 239kcal | Carbohydrates: 34g | Protein: 12g | Fat: 13g | Saturated Fat: 3g | Cholesterol: 12mg | Sodium: 351mg | Potassium: 432mg | Fiber: 7g | Sugar: 7g | Vitamin A: 198IU | Calcium: 171mg | Iron: 2mg
Tried this recipe?Mention @CopyKatRecipes or tag #CopyKatRecipes!

About Stephanie

I recreate your favorite restaurant recipes, so you can prepare these dishes at home. I help you cook dinner, and serve up dishes you know your family will love. You can find most of the ingredients for all of the recipes in your local grocery store.

Stephanie is the author of CopyKat.com's Dining Out in the Home, and CopyKat.com's Dining Out in the Home 2.

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