Blueberry Lemon Overnight Oats

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These blueberry lemon overnight oats are the perfect healthy way to start your day! They’re so easy to make, full of sweet, bright flavors, and are the perfect grab-and-go meal for busy mornings. You won’t be able to resist these creamy and zesty overnight oats.

I love overnight oats. They’re so easy to make and there are so many ways to make it. This blueberry lemon overnight oats is one of my new favorite overnight oats breakfast recipes. As a lemon lover, this one definitely hits the spot.

A glass of blueberry lemon overnight oats topped with blueberries, lemon zest, and lemon slice. Blueberries scattered around.

Why You’ll Love This Recipe

This overnight oats recipe is full of wholesome ingredients. The rolled oats, yogurt, and chia seeds ensure that these overnight oats are full of protein, fiber, and just general wholesome goodness, making it a wonderful way to start off your day.
This is a budget-friendly breakfast or snack. Most of these ingredients I have on hand or are budget-friendly to buy in bulk such as rolled oats and chia seeds. They’re always readily available at bulk food stores and they have a long shelf life.
It’s super easy to make to make these lemon blueberry overnight oats! I promise. It comes together in a few short steps.

Ingredients You’ll Need

Ingredients needed to make blueberry lemon overnight oats.

blueberries — you can use fresh or frozen blueberries! It’s more budget-friendly to use frozen blueberries, and you don’t have to worry about the blueberries not being in season.
maple syrup — you can also use honey if you prefer but I cook the blueberries down with maple syrup and use it to sweeten the overnight oats as well.
rolled oats — make sure you are using old-fashioned rolled oats. Instant oats and quick oats do not hold up as well, so I do not prefer the texture.
milk — you can use any milk of your choice, from cow’s milk to non-dairy milk such as almond milk or oat milk. If you don’t have milk, you can make it with water, like my overnight oats with water recipe.
yogurt — a thick and creamy yogurt works with the chia seeds to give the overnight oats a creamy texture. Using Greek yogurt will add a boost of extra protein. If you don’t have yogurt, you can use applesauce or mashed bananas. I highly recommend using lemon-flavored Greek yogurt for the best tangy flavor.
chia seeds — chia seeds come in both black and white seeds, but there is no difference in nutritional content, so take your pick. They’re an excellent source of plant-based protein! When they absorb the milk, it helps thicken the overnight oats.
vanilla extract — just a splash of vanilla extract is all you need.
salt — a pinch of salt helps bring the flavors together.
lemon zest — it’s important to use lemon zest and not lemon juice. The lemon zest will provide the zesty flavor whereas the lemon juice will react with the dairy and curdle.

How to Make Blueberry Lemon Overnight Oats

Set of two photos showing blueberries cooked and mashed in a pot.

Add the blueberries and maple syrup to a saucepan and cook over medium heat.
Stir and mash as the blueberries release their juices and breaks down into a saucy consistency. Cook for 10 to 20 minutes, depending on how chunky you’d like the sauce to be. Set aside and allow it to cool before storing it in the fridge.

Set of two photos showing milk and yogurt added to a bowl.

Set of two photos showing chia seeds and rolled oats added to a bowl.

Set of two photos showing lemon zest added to overnight oats and mixed to combine.

Combine the milk, Greek yogurt, chia seeds, maple syrup, vanilla extract, salt, and lemon zest and stir until well combined.
Cover with a lid or plastic and refrigerate for at least 3 hours or overnight.

Set of two photos showing blueberry sauce and overnight oats added to a glass.

Set of two photos showing blueberries and lemon zest added to the overnight oats.

When the overnight oats have set, divide the blueberry sauce between four jars and then stir the overnight oats and add on top. Add in your favorite toppings such more lemon zest and fresh blueberries.

Two jars of blueberry lemon overnight oats with spoons and topped with blueberries and lemon zest.

Recipe Tips and Notes

For an on-to-go meal, mason jars are great. 16-ounce wide-mouth mason jars are great if you plan on adding toppings, so you don’t spill anything. I also LOVE a good weck jar.
Don’t want to cook down the blueberries? Simply stir it into the overnight oats! Even better if they’re frozen, as they’ll thaw overnight in the fridge and give the overnight oats a nice color. Alternatively, you can stir in some blueberry jam!
You can add a couple of spoonfuls of nut butter to the overnight oats to add extra protein and flavor. You can also add a scoop of protein powder.
You can cook the blueberries even longer if you prefer a thicker and more syrupy blueberry sauce. You can continue to mash it as well.
You can add extra chia seeds to make the overnight oats even thicker. You can also add chia seeds to the blueberry sauce to make it thicker.

Jars of blueberry lemon overnight oats with spoons topped with lemon zest and blueberries. Blueberry sauce and more blueberries scattered around.

Make Ahead Tips

Meal prep: store the overnight oats without any toppings in an airtight container for up to 5 days in the fridge.
Freezer: to freeze overnight oats, portion out the oats in small containers, then freeze! Thaw the overnight oats in the fridge for 6-8 hours/overnight before you’d like to eat them. You can store lemon blueberry overnight oats in the freezer for up to 2 months.

What are overnight oats?

Overnight oats are a no-cook method of making oatmeal! It’s made by soaking rolled oats in some liquid overnight, so they become soft and digestible.

Are overnight oats healthy?

I would consider this blueberry overnight oats recipe to be healthy as the ingredients are rich in fiber, protein, and antioxidants. They also contain a wide range of vitamins and minerals!

Do you eat overnight oats hot or cold?

If you’re not a fan of a cold breakfast, no biggie! You can microwave the blueberry lemon overnight oats until warmed through before enjoying them for breakfast.

Can you use steel-cut oats for overnight oats?

While you can use steel-cut oats, keep in mind that steel-cut oats will need to be soaked longer, and the texture will be dense and chewy in comparison. This blueberry overnight oats recipe, in particular, uses rolled oats, so I recommend following the recipe if this is your first time making overnight oats.