What are overnight oats?

Overnight oats are basically a no-cook method for making oatmeal. Rolled oats are mixed with liquid and other mix-ins and left to soak in the fridge until soft and thickened.

How long do overnight oats need to soak?

The name would suggest that they need to soak overnight which is my recommendation for the best texture. However, you can also leave them to soak for as little as 3-4 hours if you don't have the time to wait.

Can you heat them up?

Overnight oats are intended to be eaten cold. However, you can also heat them up if you prefer them warm.

Should fresh or frozen blueberries be used?

Your choice! I like to use frozen wild blueberries since they are always available in my freezer and the smaller size of wild blueberries mixes through easily. Frozen blueberries will defrost as the mixture sits in the fridge which gives the oats a beautiful purple colour. If I also have fresh blueberries on hand, I like to add a few on top before serving.

How long do they last?

Up to 5 days in a sealed jar or container in the fridge.

What kind of oats are best for overnight oats?

Old fashioned rolled oats provide the best texture (and are the type used in this recipe).

Blueberry Overnight Oats (Healthy Meal Prep Breakfast)

Description

This delicious Blueberry Overnight Oats recipe is an easy make ahead breakfast option. These creamy overnight oats are bursting with blueberries and a pop of brightness from the lemon zest.

Ingredients

Scale

1/2 cup rolled oats (old fashioned)
1/4 cup plain Greek yogurt
3/4 cup unsweetened almond milk (or milk of choice)
1/2 cup frozen wild blueberries (see note)
1 tablespoon chia seeds
1 tablespoon maple syrup
1/2 teaspoon lemon zest
1/2 teaspoon vanilla extract
Optional toppings: fresh blueberries, toasted sliced or slivered almonds, coconut flakes, granola, etc.

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Instructions

Mix: Stir together all the ingredients in a jar, container or bowl.
Refrigerate: Cover and place in fridge overnight (or at least 3-4 hours).
Add toppings: Add some of the optional toppings, grab a spoon and enjoy!

Notes

I like to use a 16-oz wide mouth mason jar with plastic storage lid. There is enough space to mix the ingredients together directly in the jar with room left to add toppings the next day. Smaller jars like these ones are also great if you prefer to split the recipe up into smaller portions that are perfect for snacks or a small breakfast.
Fresh or Frozen Blueberries: You can use either! I prefer to use frozen wild blueberries since they are easy to keep on hand and the smaller size of wild blueberries mixes through easily. The frozen blueberries will defrost as the overnight oats sit in the fridge and give the oats a beautiful purple color. If I also have fresh blueberries, I will add a few on top before serving.
Storage: Up to 5 days in the fridge (in a sealed jar or container)
Meal Prep: This is perfect for meal prep! A larger batch can either be made in one larger container or separated out into multiple single serving jars.