Pistachio Overnight Oats
2
Published Jun 02, 2025
This post may include affiliate links. Thank you for your support.
Elevate your morning with pistachio overnight oats. These oats are creamy, protein-packed, easy to meal prep and taste like pistachio ice cream.
I had a jar of pistachio butter on hand from my protein pistachio smoothie, and given my obsession with overnight oats and the pistachio craze happening right now, I knew a pistachio overnight oats recipe had to happen. And let me tell you… it does not disappoint!
It’s creamy, nutty, and legit tastes like dessert—but it’s packed with over 20 grams of protein, making it perfect for breakfast or a mid-afternoon snack. And whatever you do, don’t skip the chopped pistachios on top… that extra crunch is chef’s kiss!
Table of Contents
Why You’ll Love This Recipe
- Protein-packed – With protein powder, chia seeds, oats and pistachio butter, this recipe is packed with over 30 grams of protein to keep you full all morning long.
- Creamy + crunchy – The base is smooth and creamy, and the crunchy pistachio topping makes every bite extra satisfying.
- Naturally sweetened – A little maple syrup goes a long way—no refined sugars needed.
- Easy – You only need 9 simple ingredients and all you have to do is mix, chill, and enjoy. No cooking required!
- Perfect for meal prep – I love doubling or tripling the recipe during my weekend meal prep so I have breakfast ready to go for a few days.
Ingredients Needed
- rolled oats – the base of the recipe and a great source of whole grains.
- vanilla protein powder – adds a boost of protein and sweetness. I used Equip Vanilla protein powder, but any high-quality vanilla protein powder works. If you use a plant-based protein powder you’ll likely need to add a splash more milk when serving.
- milk – you can use either unsweetened pistachio milk (for more pistachio flavor!) or unsweetened almond milk.
- vanilla extract – enhances the natural sweetness and ties all the flavors together.
- chia seeds – for fiber, healthy fats and that perfect thick overnight oat texture.
- maple syrup – adds just the right amount of sweetness. You can adjust to taste.
- pistachio butter – the star of the show! I found Pistachio Butter on Amazon and it’s incredible. It’s a little pricey, but one jar goes a long way and it’s totally worth it, in my opinion!
- pistachios – I used roasted and salted pistachios. I love the added crunch and flavor they add to this recipe!
- pinch of salt – just a touch to round out all the flavors.
Substitutions & Variations
- Sweetener: Maple syrup can be swapped for honey, agave, or monk fruit syrup depending on your preference. You could also try blending in a date instead of maple syrup for a different kind of sweetness.
- Crunch factor: If you want even more texture, sprinkle a little homemade granola on top before serving or add a handful of chopped toasted coconut.
- No protein powder? Not a fan of protein powder or just don’t have any on hand? You can skip it all together!
How to Make Pistachio Overnight Oats
This recipe comes together in just minutes—your fridge does all the work overnight! Here’s how to make it:
Step 1: Add all ingredients to a mason jar or container and stir to combine.
Step 2: Place in the fridge for at least 4 hours or overnight. Bring out of the fridge in the morning and stir. Add more milk if needed. Add toppings of choice and enjoy!
Brittany’s Recipe Tips!
- Stir before serving: The protein powder and nut butter can settle a bit in the fridge, so a quick stir before eating helps bring it all together.
- Customize your texture: Like it thicker? Use less milk. Want it extra creamy? Add a splash of milk when serving.
- Don’t skip the toppings: The chopped pistachios add such a satisfying crunch. Toast them for extra flavor!
How to Store Overnight Oats
Store your overnight oats in an airtight container (like a mason jar or glass meal prep container) in the fridge. They’ll keep well for up to 4–5 days, which makes them perfect for meal prep. Just give them a stir before serving and add your toppings fresh.
Frequently Asked Questions
For this pistachio overnight oats recipe, I really recommend sticking with rolled oats! Steel-cut oats won’t soften enough without cooking, and quick oats can turn out mushy. Rolled oats give you the perfect creamy texture every time.
As long as you use a plant-based protein powder this recipe is vegan! If you’re looking for a new brand of protein powder, check out my full blog post on my favorite protein powders.
If you enjoyed this recipe, please consider leaving a ⭐ star rating and let me know how it went in the 📝 comments below.
Pistachio Overnight Oats
Ingredients
- ½ cup rolled oats
- 1 scoop vanilla protein powder
- ¾ cup unsweetened almond milk, or pistachio milk
- ½ teaspoon vanilla extract
- 1 teaspoon chia seeds
- ½ Tablespoon maple syrup
- 1 Tablespoon pistachio butter
- 1 Tablespoon chopped, roasted, and salted pistachios, plus more for topping
- Pinch of salt
Instructions
- Add all ingredients to a mason jar or container and stir to combine.
- Place in the fridge for at least 4 hours or overnight.
- Bring out of the fridge in the morning and stir. You’ll notice that the protein powder, oats and chia seeds soak up a lot of the liquid so you may want to add a little more milk before serving.
- Top with chopped pistachios, a drizzle of pistachio butter, or desired toppings. Enjoy!
Notes
- No protein powder? Not a fan of protein powder or just don’t have any on hand? You can skip it all together!
- Protein powder: If you use a plant-based protein powder you will likely need more milk, probably about 1-1 ¼ cup to get the proper consistency.
- Storage: Store your overnight oats in an airtight container (like a mason jar or glass meal prep container) in the fridge. They’ll keep well for up to 4–5 days, which makes them perfect for meal prep. Just give them a stir before serving and add your toppings fresh.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Where do you get pistachio butter?
You can find it on Amazon! I used this one from Gourmanity and it’s super creamy and flavorful. You might also be able to find pistachio butter at specialty grocery stores or make your own by blending roasted pistachios in a food processor until smooth.