It's not easy to find healthy rhubarb recipes, but these flavorful Rhubarb Overnight Oats are just that! Loaded with healthy ingredients, they are easy to make with a quick microwave rhubarb purée and make a great meal prep breakfast. They are also perfect for taking on the go! Overnight oats are not only a filling healthy breakfast, but they are also a great source of fiber.

rhubarb overnight oats in a jar with 2 other jars in the background

Rhubarb Overnight Oats are popular during rhubarb season which is generally from late April until late June, depending where you live. This recipe was inspired by my Healthy Bananas Foster Overnight Oats, If you love rhubarb, you're going to love this overnight oats recipe!

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Why we love this recipe!
🥘Ingredients
Benefits of Steel-cut Oats
🔪Instructions
📖 Variations & Substitutions
Equipment
🌡️Storage
👪 Serving Size
🔢WW Points
🥗 Pairing
📋 Easy Rhubarb Overnight Oats Recipe
📋More Rhubarb Breakfast Recipes!

Why we love this recipe!

It keeps you full a very long time (steel-cut oats take a long time to digest)
It's simple and quick to make
You can meal prep it
You can take it on the go
You can use fresh or frozen rhubarb, or pre-made rhubarb compote or stewed rhubarb with strawberry gelatin

🥘Ingredients

This is straight-up rhubarb! You don't need to use strawberry to make rhubarb taste great.

I use steel-cut oats, but you can easily swap out old fashioned oats (use ¾ cup milk per jar instead of 1 cup), just do NOT use quick oats.

What's the difference between steel-cut oats and old fashioned oats?

Steel-cut oats and old-fashioned oats (aka rolled oats) are both oat kernels, but they're processed differently. Steel-cut oats are cut into pieces while old-fashioned oats are steamed and rolled flat (making them quicker to cook).

Steel-cut oats are more coarse and have a chewier texture than old fashioned oats and have a little more fiber than rolled oats.

YOU will need the following ingredients for this overnight oat recipe:

ingredients in rhubarb overnight oats in glass bowls, labelled

2 cups uncooked steel cut oats
3 cups rhubarb cooked and pureed
4 tbsps brown sugar
1 cup unsweetened coconut
4 teaspoons cinnamon
2 ½ tbsps chia seeds
4 cups low-fat milk
2 teaspoons vanilla extract
1 teaspoon orange extract

Benefits of Steel-cut Oats

According to WebMD, steel cut oats have several health benefits, including

Healthy digestion. The fiber in steel-cut oats helps move food through more easily through your digestive tract so you don't get backed up.

Strong immune system. Fiber can also improve your gut health, which can make your immune system stronger and help lower your risk of diseases like cancer.

Support weight loss. Fiber slows the movement of food through your digestive tract, which helps you feel fuller after eating. This can help you avoid overeating if you're trying to lose weight. And steel-cut oats also take longer to digest. This helps you stay full longer and doesn't cause as much of a rise in your blood sugar.

🔪Instructions

4 mason jar mugs with cinnamon, oats, chia seeds and coconut in them

Step 1: In each of 4 small glass jars, place ½ cup of oats, ¼ cup unsweetened coconut, 2 teaspoon of chia seeds, and 1 teaspoon cinnamon

milk mixed with orange and vanilla extract in a plastic 4 cup measuring cup

Step 2: Mix the vanilla and orange extract into the milk in a pourable measuring cup.

Step 3: Pour the milk over oat mixture in each mason jar, dividing equally by 4 (1 cup per jar)

Milk being mixed into oat mixture in glass mason jar mugs

Step 4: Stir gently to mix.

one mason jar covered and the other uncovered

Step 5: Cover and refrigerate overnight (I recommend 10 hours)

Step 6: Meanwhile, Cook rhubarb in the microwave for 3-4 minutes (if using fresh), with 2 tablespoons of water. Cook for 6 minutes if using frozen rhubarb (with no water). Drain rhubarb through a sieve.

Step 7: Purée cooked rhubarb in food processor or blender until smooth (you should get just over a cup)

pureed rhubarb in a glass bowl with a spoon

Step 8: Add 4 tbps brown sugar to rhubarb purée.

pureed rhubarb in a glass bowl covered with plastic glad press n' seal wrap

Step 9: Refrigerate puréed rhubarb in a separate bowl or container covered/sealed.

2 jars of rhubarb overnight oats with rhubarb puree added. as well as cinnamon and coconut garnish

Step 10: In the morning, add rhubarb puree to oats, dividing evenly by all 4 jars. Add a little coconut and a cinnamon stick to garnish.

Stir together. Eat it cold right out of the fridge, or remove lids and warm it up in the microwave for about 30 seconds.
Add additional sugar or sweetener if desired.

📖 Variations & Substitutions

Milk-you can use a non-fat skim milk, low-fat 1% milk, 2% milk, whole milk, or use a dairy-free milk (plant-based milk) such as almond milk or soy milk
Brown Sugar -you substitute white sugar or another sweetener such as maple syrup, agave, honey or monk fruit
Oats- you can use old-fashioned oats instead of steel-cut oats but use a little less milk (¾ cup per jar (3 cups in total) *do NOT use quick or instant oats. And if you want the benefits of steel-cut oats, with a softer and less chewy texture, there is a thing as Quick Cooking Steel Cut Oats!
Rhubarb - you can use fresh or frozen rhubarb or use leftover plain stewed rhubarb or strawberry rhubarb compote (stewed and compote are the same thing)
Orange extract - you can substitute 1 teaspoon of orange zest and cook it with the rhubarb

Equipment

You will need a cutting board, a sharp knife, a microwave-safe bowl, and 4 mason jars. I like to use the mason jar mugs. I use the 16 oz ones, but you could use smaller (8 or 12 oz jars) and make more servings or cut the recipe in half. *See recipe card for recommended equipment photos and links

🌡️Storage

Store these overnight oats in the fridge for up to 4 days. These ingredients don't stand up well to freezing.

👪 Serving Size

This breafast recipe makes 4 large servings (16 oz each). I actually got 2 breakfasts out of one serving. You can use 8 oz jars and cut the recipe in half. You can also double or triple the recipe by clicking on the serving number and selecting the number of servings you'd like. This would make a great breakfast potluck dish in 8 oz jars. The ingredient quantities will automatically adjust.

🔢WW Points

This recipe is 8 Weight Watcher points per ½ jar (8 oz ) using non-fat milk, which is a true serving. You can reduce the points by using monk fruit sweetener.

🥗 Pairing

Although these oats go great with a glass of orange juice, these are my favorite dishes to serve with these overnight oats:

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So if you're looking for a delicious Rhubarb Overnight Oats without strawberry, you'll love this easy breakfast!

If you love overnight oats, be sure to try my Oatmeal Raisin Cookie Overnight Oats too!

raisin cookie oatmeal in a jar with cookie on top on blue background with raisin oatmeal cookies around and jars of oatmeal in background

📋More Rhubarb Breakfast Recipes!

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