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    Home » Recipes » Breakfast

    Overnight Steel Cut Oats

    Published: Sep 27, 2025 by Nicole Addison · This post may contain affiliate links · 1 Comment

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    This is how to make Overnight Steel Cut Oats, the best healthy breakfast to meal prep. Gluten-free, high fiber and 3 flavor options!

    Birds eye of chocolate peanut butter overnight steel cut oats.

    Oatmeal is one of the most nutritious breakfast foods because it's packed with fibre that's been shown to reduce cholesterol and support gut health. The problem is, most people don't like it because they don't know how to cook it right.

    I've been on a mission to make oatmeal fun with recipes like sugar cookie baked oats and brownie batter overnight oats, but I always get asked about steel cut oats.

    Steel cut oats are incredibly nutritious, because they're less processed than rolled oats, which are steamed and flattened by a roller. This makes steel cut oats more beneficial for blood sugar, although all oats are a great choice in my books. With that said, steel cut oats do need to be cooked longer, so they don't always work well in overnight oats recipes.

    These overnight steel cut oats are my solution for everyone who wanted to enjoy the cold, chilled texture of overnight oats, but with the extra nutrition benefits of steel cut. These oats only require 5 minutes of cooking plus an overnight chill, and then you can top them however you like. I shared my 3 favorite flavor combinations below!

    Why This Recipe Is Dietitian Approved

    1. High fiber. Oats are a great source of fiber that supports gut health, heart health, satiety and blood sugars.
    2. Meal prep friendly. I always meal prep steel cut oats because it saves time throughout the week.
    3. Customizable. My favorite part about overnight oats is how creative you can get with flavor combinations. The options are endless; it's impossible to get bored!

    Ingredients

    Ingredients including steel cut oats, milk, maple syrup and salt.

    Milk. For our liquid of choice, you can use milk or water- the choice is yours! Milk will create creamier oats, while water will result in a thinner consistency.

    Salt. I always like adding a touch of salt to my oats to create a deeper flavour that balances out the sweetness of the toppings.

    Steel cut oats. The key ingredient for these overnight steel cut oats. My favourite brand is Bobs Red Mill, but whatever you have will work.

    Maple syrup. For a touch of natural sweetness. Look for a 100% pure maple syrup (not pancake syrup) or use any sweetener of choice (brown sugar, honey etc.). Steel cut oats have a very plain flavour, so a little sweetener goes a long way.

    Toppings. I've included a few suggestions for topping ideas in the recipe card below, however feel free to get creative! I love adding a dollop of greek yogurt to mine too for some added protein.

    The complete ingredient list with measurements can be found in the recipe card below. 

    Instructions

    Boiling milk and salt.
    1. Step 1: In a large pot over medium-high heat add water and salt and bring to a boil. *It's important to watch the pot to ensure the ingredients don't boil over. 
    Cooking steel cut oats.
    1. Step 2: Once boiling, reduce the heat and add in the oats and maple syrup. Continue stirring for 2-3 minutes to soften the oats. 
    Container of cooked steel cut oats.
    1. Step 3: Remove the pot from the heat and allow the oats to come to room temperature. Once cool, add to one large container or 4 small containers, cover and place in the fridge overnight.
    Bowl of berry steel cut oats.
    1. Step 4: In the morning, add toppings of choice and enjoy cold. 

    Substitutions and Variations

    To make gluten-free: use certified gluten-free oats.

    To make dairy-free: use a plant-based milk of choice (I like soy milk for extra protein) or water.

    To make nut-free: this recipe is naturally nut-free.

    Get creative with the toppings! I have provided a few options in the recipe card below however feel free to see what you have available. 

    Oats are a great source of fiber-filled carbohydrates, so I recommend pairing with some healthy fats (e.g. nuts, seeds or peanut butter) and a protein source (e.g. protein powder or greek yogurt) for a balanced meal.

    Equipment

    • Pot

    Storage

    Overnight steel cut oats can be stored in the fridge for up to 5 days.

    Top Tips for Success

    If you are booking for a non-steel cut oat version of overnight oats, I have LOTS available! I recommend starting with my high protein overnight oats recipe.

    Unlike regular overnight oats, I highly recommend waiting a full 6 hours (overnight) until consuming these, as the steel cut oats are less processed. I find they require a bit more time to soak in the liquid and become soft.

    Frequently Asked Questions

    Can I eat these steel cut oats warm?

    Yes of course! Typically overnight oats are eaten cold, however if you prefer to have your oats warm simply warm them in the microwave before eating.

    Do I need to cook steel cut oats before soaking in the fridge?

    Yes! This step is crucial when using steel cut oats for overnight oats. Unlike regular oats, steel cute oats are not processed, meaning they need to be heated in order to soften them enough to eat.

    Are steel cut oats high protein?

    Steel cut oats have around 5g of protein per ¼ cup raw. I like to add in protein powder or Greek yogurt to make it higher protein.

    Birds eye of steel cut overnight oats with banana nut flavor, berries, and chocolate chip.

    More Breakfast Recipes

    If you liked these steel cut overnight oats, try these oat recipes next:

    • Chocolate Chip Cookie Dough Overnight Oats
    • Tiramisu Overnight Oats
    • Apple Pie Overnight Oats
    • Blueberry Crumble Overnight Oats

    See you in the kitchen!

    PS. I love seeing my recipes in action! If you decide to make these overnight steel cut oats, don't forget to snap a photo and tag me on Instagram- @nourishedbynic or leave a comment and rating below letting me know how you liked it!

    📖 Recipe

    Birds eye of chocolate peanut butter overnight steel cut oats.
    Print Recipe Pin Recipe
    5 from 1 vote

    Overnight Steel Cut Oats

    This is how to make Overnight Steel Cut Oats, the best healthy breakfast to meal prep. Gluten-free, high fiber and 3 flavor options!
    Prep Time5 minutes mins
    Cook Time5 minutes mins
    6 hours hrs
    Total Time6 hours hrs 10 minutes mins
    Course: Breakfast
    Cuisine: American
    Keyword: Breakfast, meal prep, Oats, overnight oats
    Servings: 4

    Ingredients 

    Base recipe:

    • 4 cups water or milk or half and half
    • ½ teaspoon salt
    • 2 cups uncooked steel cut oats
    • 1.5 tablespoon maple syrup or sweetener of choice
    • Toppings of choice see below

    Berry Explosion:

    • ½ cup blueberries fresh or frozen
    • ½ cup strawberries diced

    Banana Nut:

    • 1 banana sliced
    • 2 tablespoon nut butter of choice ie. peanut butter, almond butter
    • 1 tablespoon sliced almonds
    • ½ teaspoon cinnamon

    Chocolate Peanut Butter:

    • 2 tablespoon natural peanut butter
    • 1 tablespoon chopped peanuts
    • 2 tablespoon chocolate chips

    Instructions

    • In a large pot over medium-high heat add water and salt and bring to a boil. *It's important to watch the pot to ensure the ingredients don't boil over.
    • Once boiling, reduce the heat and add in the oats and maple syrup. Continue stirring for 2-3 minutes to soften the oats.
    • Remove the pot from the heat and allow the oats to come to room temperature. Once cool, add to one large container or 4 small containers, cover and place in the fridge overnight.
    • In the morning, add toppings of choice and enjoy cold.

    Notes

    If you prefer to use quick-cooking steel cut oats you absolutely can. This will result in a softer texture.
    For added nutrients, feel free to add a sprinkle of hemp seeds, chia seeds or flax seeds or even a scoop of protein powder (I recommend stirring these in once the oats are cool).
    If you would like to enjoy these warm, add the oats back to a small pot in the morning and stir over low-medium heat until warm.
    *I have included an estimation of the nutrition information for this recipe below. However, always remember a recipe is so much more than just nutritional content and these numbers do not need to dictate your food choices. Please don't forget that both your body and soul need nourishment! The owner of this website is not liable for this estimation.

    Nutrition

    Serving: 0.75cup | Calories: 475kcal | Carbohydrates: 69g | Protein: 21g | Fat: 13g | Saturated Fat: 5g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Cholesterol: 29mg | Sodium: 384mg | Potassium: 383mg | Fiber: 9g | Sugar: 16g | Vitamin A: 395IU | Calcium: 348mg | Iron: 3mg
    Did you know....rating and sharing recipes is one of the best ways you can support your favourite food bloggers? If you make this recipe, I would love if you clicked the stars below to leave a rating and/or sharing a photo on social media by tagging @nourishedbynic or using the hashtag #nourishedbynic!

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    Comments

    1. Nicole Addison says

      September 28, 2025 at 5:48 pm

      5 stars
      I ALWAYS get asked if you can use steel cut oats in my overnight oat recipes... and I finally have a version that you CAN! I hope you enjoy!

      Reply

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    Nicole Addison, RD

    Hi I'm Nicole!

    I’m a Registered Dietitian, recipe developer and content creator on a mission to help individuals rediscover the joys of cooking with easy, accessible, healthy recipes.

    On my page you'll find yummy recipes, wellness tips, and even some of my favourite travel and lifestyle recommendations!

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