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On a cold morning, soaked oatmeal porridge provides a hearty, wholesome, and budget-friendly start to the day. It's easy to make, and just takes a little bit of planning to pull it all together. Dress it with your favorite fruit, nut butter, or a little maple syrup for an easy breakfast.
Jump to Recipe | What is it? | What's in it? | Benefits | Tips | Variations | Common Questions
What is it?
Soaked oatmeal porridge was popularized by the cookbook Nourishing Traditions which advocates for soaking grains to improve the bio-availability of minerals such as zinc and iron. It tastes the same as regular oatmeal, with a slightly and barely perceptible acidic undertone owing to the inclusion of lemon juice or apple cider vinegar. Soaked oatmeal is super creamy and quick to cook, too.
Many old-world, historical recipes call for soaking oats overnight and sometimes up to 48 hours for making dishes such as porridge, flummery (a Scottish dessert), and pudding (1). Keep in mind, though, that not all traditional recipes call for soaking oats to make porridge, and quite a few simply call for boiling oats in water or milk.
What's in it?
You need a handful of ingredients to make soaked oatmeal porridge, plus any additional ingredients you'd like for adding flavor once the porridge is finished. In general, you'll need oats, salt, an acidic ingredient, an ingredient that's rich in the enzyme phytase, and liquid.
- Oats are the foundation of good porridge. For this recipe, you should look for old-fashioned thick-cut rolled oats or steel cut oats. Quick oats undergo more processing than thicker cut rolled oats and are more likely to dissolve and lose their form during soaking.
- Flaked rye, buckwheat and whole wheat flour are all rich in the enzyme phytase which helps to breakdown phytic acid. Since most commercial oats are heat-treated through steam (unless you flake the oat groats yourself), they're low in the natural enzyme needed to breakdown phytic acid. So, adding a phytase-rich ingredient helps to support the soaking process.
- An acidic ingredient such as lemon juice or vinegar encourages the break down of phytic acid. This is why sourdough fermentation, which lowers the PH of flour, also decreases phytic acid (2).
- Salt gives the porridge flavor, balancing the natural sweetness of oats.
- Water and milk form the liquid foundation for the porridge. Use hot water for soaking oats since its elevated temperature promotes the breakdown of phytic acid. Whole milk works well for cooking the porridge, and is the primary cooking liquid in many traditional recipes; however, you can use additional water or a non-dairy substitute such as coconut milk if you prefer.
Is soaking oatmeal good for you?
Many people soak their oats because they think it's healthier. And, for some people, it can be; however, not everyone needs to take this extra step in the mornings. Instead, whether or not the soaking process will benefit you is largely bio-individual - meaning that it's dependent on your body's individual needs.
- Oats are generally considered to be a healthy food, and are widely considered to support general health, but specifically heart, digestive, and metabolic health (3).
- Soaking may make oatmeal a little easier to digest. Soaking foods rich in phytic acid in a warm, slightly acidic medium helps to break enzyme inhibitors that can make grains difficult to digest (4).
- Soaking grains may improve the availability of minerals in your oats. That's because soaking grains such as oats kickstarts the enzymatic process that breaks down and phytic acid, thus making zinc and other minerals a little easier for your body to absorb (5).
- Most people probably don't need to soak their grains. Soaking grains to improve the availability of minerals is helpful for people at risk of nutritional deficiency or who are heavily reliant on foods rich in phytic acid for the bulk of their diet (6). If you're eating an otherwise nutritious, mineral-rich diet, the benefit of soaking oats is likely minimal.
- Phytic acid can be beneficial. While it's largely considered an anti-nutrient because it can block the absorption of some minerals in grains and pulses, phytic acid has some benefits, too. It's a strong anti-oxidant (7), and may benefit the kidneys (8) and metabolic health (9).
Tips for soaking oats
Making soaked oatmeal is just as easy, if not easier, than making a regular oat porridge. The soaking process also makes oats faster to cook, and they often taste creamier than regular oatmeal. There are a few tips you'll want to keep in mind before you make your first batch of porridge.
- Rolled oats are steam-treated, so you'll need to add a phytase rich addition if you hope to encourage the breakdown of phytic acid. Rye, buckwheat, and wheat are all rich in phytase, so you might add a spoonful to the oats as they soak.
- Skip the quick oats and use old-fashioned, thick-cut rolled oats or steel cut oats instead. Quick oats are too fine and thin, and will turn to mush with an overnight soak.
- Temperature matters. Soak the oats in hot water and at room temperature. The enzymes responsible for making soaked oats so good need warmth to do their work.
- Keep an eye on the stove. Soaked oats cook lightning fast, and if you leave the stove unattended they might overcook or start to burn.
- Add lots of flavor with chopped fresh fruit such as apples in the fall or berries in the summer, nut butter, coconut flakes, butter, cream, and chopped nuts.
Rate this Recipe
5 from 3 votes
4 servings
Soaked Oatmeal Recipe
Soaked oatmeal porridge is a simple, nourishing, and affordable breakfast that takes practically no effort to make. It's delicious partnered with plenty of butter, chopped fresh fruit and toasted nuts for a hearty, cheap breakfast.
Prep Time5 mins
Cook Time5 mins
Soaking8 hrs
Total Time8 hrs 10 mins
Print Save Recipe
Ingredients
For the soaked oatmeal porridge
- 2 cups old-fashioned rolled oats
- 2 tablespoons flaked rye
- ½ teaspoon finely ground real salt
- 2 tablespoons lemon juice
- 2 cups hot water
- 2 cups milk
To serve
- salted butter
- chopped fresh fruit
- chopped nuts
- heavy cream
Equipment
medium mixing bowl
Instructions
The night before
Dump the oats into a medium mixing bowl, and then cover with hot water. Stir in the salt and lemon juice, and then cover the bowl. Let the oats soak at room temperature for at least 6 and up to 8 hours.
The next morning
Spoon the soaked oats into a medium saucepan, and then pour in the milk. Bring to a boil over medium-high heat, stirring constantly, and simmer until the porridge is cooked through and creamy - 3 to 5 minutes.
Serving the porridge
Spoon the porridge into individual bowls, and then top with butter, fresh fruit, nuts, and cream as you like it.
Rate this recipe!If you loved this recipe, give it a rating. Let us know what works, what didn't and whether you made any adjustments that can help other cooks.
Variations
For a dairy-free option, try making soaked oatmeal with light coconut milk. Full-fat coconut milk and coconut cream tend to be a little heavy and can make the porridge taste oily.
For a gluten-free option, use certified gluten-free oats. Instead of rye flakes, try adding a tablespoon of ground buckwheat flour which is also a rich source of phytase (the enzyme that breaks down food phytate).
Try straight rye flakes instead of oatmeal. Rye has a gorgeous nutty flavor and makes a lovely porridge, and you can prepare flaked rye using the same method as soaked oatmeal.
Use steel cut oats instead of rolled oats. Steel cut oats make a delicious, hearty porridge. You can follow the soaked oatmeal recipe above; however, you may need to increase the cooking time or liquid content.
Consider toasting your oats before soaking them. Toasting your oats in a hot pan or in the oven until slightly browned gives them a naturally sweet, malted flavor. Toasting oats (just like roasting nuts) may also decrease the phytate content
Common questions
How long does oatmeal keep?
You can keep the cooked oatmeal porridge in a container in the fridge for up to 3 days. To reheat, put it in a pan and add a little water or milk and warm it over medium-low heat until warm.
Can I freeze oatmeal?
Yes, you can make a big batch and freeze individual portions of oat porridge in muffin tins, transferring the frozen oatmeal to a resealable container. Reheat with a bit of extra water or other liquid.
What can I substitute for lemon juice?
Try using another acidic ingredient such as apple cider vinegar. Avoid using liquid whey. While whey is a popular ingredient for soaking oats and other grains, there's some evidence that calcium-rich dairy products may actually inhibit the breakdown of food phytate. This is only relevant to the soaking step (when phytate is broken down), not to cooking oats which you can do in milk and other dairy products.
Don't I have to rinse the oats?
It makes sense that if you're soaking oats to rid them of phytic acid, you would need to discard the soaking water; however, this process is enzymatic. That means the phytic acid is deactivated (to some degree) and you do not need to discard the soaking water.
How much protein is in oatmeal?
A serving of oatmeal offers about 6 grams of protein - so not that much. If you're having oats for breakfast, you might consider adding other protein-rich foods such as breakfast sausage or eggs to your meal.
What's the difference between soaked oatmeal and overnight oats?
The primary difference between soaked oatmeal and overnight oats is that soaked oatmeal is cooked and then eaten while overnight oats are eaten raw without any additional cooking.
Further, preparing soaked oatmeal requires soaking the oats in water at room temperature (since warm temperatures support the break down of phytic acid) while overnight oat recipes sometimes call for placing the ingredients into the fridge.
Try these breakfast recipes next
- Homemade Yogurt
- Sourdough Bagels
- Baked Eggs with Smoked Salmon
- Traditional Sourdough Pancakes
References
- Rundell, M.E. A New System of Domestic Cookery. (1807)
- Leenhardt, Fanny et al. “Moderate decrease of pH by sourdough fermentation is sufficient to reduce phytate content of whole wheat flour through endogenous phytase activity.”Journal of agricultural and food chemistryvol. 53,1 (2005)
- Paudel, Devendra et al. “A Review of Health-Beneficial Properties of Oats.”Foods (Basel, Switzerland)vol. 10,11 2591. 26 Oct. 2021
- Shi, Lan et al. “Changes in levels of enzyme inhibitors during soaking and cooking for pulses available in Canada.”Journal of food science and technologyvol. 54,4 (2017)
- Gupta, Raj Kishor et al. “Reduction of phytic acid and enhancement of bioavailable micronutrients in food grains.”Journal of food science and technologyvol. 52,2 (2015)
- Vashishth, Amit et al. “Cereal phytases and their importance in improvement of micronutrients bioavailability.”3 Biotechvol. 7,1 (2017)
- Graf, E et al. “Phytic acid. A natural antioxidant.”The Journal of biological chemistryvol. 262,24 (1987)
- Petroski, Weston, and Deanna M Minich. “Is There Such a Thing as "Anti-Nutrients"? A Narrative Review of Perceived Problematic Plant Compounds.”Nutrientsvol. 12,10 2929. 24 Sep. 2020
- Chatree, Saimai et al. “Role of Inositols and Inositol Phosphates in Energy Metabolism.”Molecules (Basel, Switzerland)vol. 25,21 5079. 1 Nov. 2020
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