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Recipes Breakfast Overnight Oats

Cookie Butter Protein Overnight Oats

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Author:

Erin

Published:

March 7, 2023

Updated:

November 7, 2024

This post may contain affiliate links. Please read my disclosure policy for details.

This week’s new recipe is these delicious, make-ahead Cookie Butter Protein Overnight Oats! If you’ve never had it before, cookie butter is a nut free, spreadable treat (akin to peanut butter) that’s made out of Biscoff cookies. It has a sweet and cinnamon spiced cookie flavor, which I really enjoy. Cookie butter is pretty common in parts of Europe and has gained popularity in the US over the last few years.

  • How Far in Advance Can I Make Overnight Oats?
  • Ingredients and Substitutions
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  • Recipe

I made these oats with both Greek yogurt and whey protein for an ultra creamy, luxurious texture. The layer of melted cookie butter on top is the pièce de résistance – not only is it gorgeous, but it’s also a great way to hammer home the cookie butter flavor in these oats. I recommend using a narrow container like these 10 oz mason jars so you can get an even spread of melted cookie butter over the oats before you store them in the fridge! I added some crumbled Biscoff cookies on top too if you’re into that sort of thing.

How Far in Advance Can I Make Overnight Oats?

The name would suggest that you need to make them the night before you eat them, but I’ve made them up to 6 days in advance and haven’t had any issues. For most overnight oats recipes, the texture starts to change slightly after about 3 days in the refrigerator. People worry a lot about oats getting mushy if they don’t eat them within a day or two, but I find they get more creamy than anything. You may also find that some of the liquid separates or that they seem to dry out – just give them a stir and add more of your milk of choice to revive them!

If you’re worried about whether you’ll still like them after a few days, I’d recommend 2 things: 1) make a test batch and give it a try on day 4 and 5 to see if you like it. Don’t put all of your proverbial eggs in that breakfast basket on those days – have a backup ready to avoid any frustration or disappointment if you don’t like them. And 2) if you find you don’t like their texture on days 4, 5, 6, etc. – mix up the dry ingredients in a jar ahead of time and stash it on your counter. Then all you’ll have to do is add the wet ingredients and stick it in the fridge overnight when you’re ready for it!

Another pro tip: always be sure to use the regular or thick rolled oats/old fashioned oats. There are quick cooking rolled oats out there that will lose their chew way faster than the thicker ones. Bob’s Red Mill actually makes these Extra Thick Rolled Oats that are perfect for overnight oats!

Ingredients and Substitutions

Here’s what you’ll need to make this recipe:

  • Rolled oats – I prefer to use rolled oats (also called old fashioned oats) in my overnight oats recipes because they maintain some chew even after a few nights in the fridge. Quick cooking oats turn to mush and steel cut oats have too much bite (even if you use the quick cooking kind).
  • Milk – Use whatever neutral tasting milk you prefer! I used almond milk, which doesn’t have a strong flavor. Some non-dairy milks have a really strong flavor or are overly sweet – I’d stay away from those in this recipe.
  • Vanilla non-fat Greek yogurt – This helps make these oats extra creamy while adding a boost of protein. I also used some on top mixed with a couple other ingredients as a sort of “frosting.” If you want to use a dairy free yogurt, check out my recommendations here.
  • Biscoff cookie butter – Cookie butter has a similar, but thicker texture as peanut butter and it’s made out of biscoff cookies. It has a sweet, cinnamon spiced cookie flavor. If you’d rather use something else you already have on hand, peanut butter or Nutella would be great substitutes!
  • Whey protein powder – I used a whey protein in this recipe. You can really use any kind you like, but I prefer whey in overnight oats since it dissolves easily into milk and tastes great. A casein or whey/casein mix will absorb more milk than just whey alone, so you may need to adjust the amount of almond milk if you decide to use one of those. Plant based proteins can sometimes leave a gritty texture and have an aftertaste. If you don’t want to use protein powder at all, that’s fine too – just skip it! Just leave out about 2 tbsp of milk – you can always add more back in the morning if the oats seem too thick for your liking.
  • Chia seeds – If you’re not familiar with them, they’re the little black specks you can see in the overnight oats. As they sit in liquid, they soak up moisture and help your overnight oats thicken up and get really creamy. Plus they’re a great source of fiber and antioxidants!
  • Vanilla extract – Like salt in a savory dish, vanilla tends to enhance the flavors of a sweet recipe.
  • Almond extract – In addition to the vanilla extract, almond extract really helps give these oats that cookie flavor. A little bit of almond extract goes a very long way, so be careful when adding this one to your oats – don’t add more than the recipe calls for!
  • Cinnamon – Bump up the spice with a bit of extra cinnamon to enhance the cookie butter flavor.

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Immersion Blender

10 oz Mason Jars

Rolled Oats

Cookie Butter

Recipe

4.80 from 5 votes

Cookie Butter Protein Overnight Oats

Prep: 15 minutes mins
Total: 15 minutes mins
Servings: 2 servings
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Overnight oats made with Greek yogurt and whey protein for an ultra creamy, luxurious texture and plenty of protein. Top with cookie butter!
Servings: 2 servings

Ingredients

  • 2/3 cup rolled oats, (64 grams)
  • 5/8 cup unsweetened vanilla almond milk, (5 fl oz)
  • 1/2 cup Dannon Light & Fit Vanilla Greek yogurt, (4 fl oz)
  • 2 1/2 tbsp Biscoff cookie butter, melted and divided, (38 grams)
  • 2 tbsp vanilla whey protein, (17 grams)
  • 1/2 tbsp chia seeds, (6 grams)
  • 1/2 tsp vanilla extract
  • 1/4 tsp cinnamon
  • 1/8 tsp almond extract
  • pinch salt

Instructions

  • Add almond milk and whey protein to a bowl and and whisk together until smooth. Add yogurt, 1/2 tbsp melted cookie butter, and extracts, and whisk again until smooth.
  • Add oats, chia seeds, cinnamon, and salt and mix until well combined. Add to resealable storage container. Set aside.
  • Drizzle remaining melted cookie butter over the top of the prepared oats. Cover and refrigerate overnight.
  • Optional: top with crushed Biscoff cookie before serving.

Tips & Tricks

Scan the barcode below or search for “Peanut Butter and Fitness Cookie Butter Protein Overnight Oats” to log this food in My Fitness Pal.

Nutrition Information

Calories: 313kcal (16%), Carbohydrates: 38g (13%), Protein: 16g (32%), Fat: 11g (17%), Cholesterol: 20mg (7%), Sodium: 125mg (5%), Potassium: 248mg (7%), Fiber: 4g (17%), Sugar: 10g (11%)

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If you make this, please leave a review and rating letting me know how you liked this recipe! This helps my business thrive & continue providing free recipes. You can also tag me on Instagram at @peanutbutterandfitness so I can see your creations!

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About Erin

Erin is the author behind Peanut Butter and Fitness. She started this website in 2013 as a way to keep track of her favorite healthier kitchen creations and meal preps. Today, she still loves playing with her food and camera while helping others strike a balance between indulgence and well-being.

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7 responses

  1. Jamie
    April 29, 2023

    Omg these are amazing. I’m currently eating my first batch. Such great flavor and texture!!!

    Reply
    1. Erin
      April 30, 2023

      Thanks so much Jamie! Glad you enjoyed them 🙂

      Reply
  2. Valerie
    January 3, 2024

    5 stars
    WOW I can’t believe how delicious this recipe is!!! I have such a hard time finding overnight oat recipes that I like as I usually can’t find anything that stands out flavour wise to make the texture worth it for me – but I have been trying to incorporate these into my diet more since the macros are so good. Boy did this recipe ever exceed expectations!!! I make this for breakfast daily now not just for the macros but because I actually really enjoy eating them! Such a great idea to incorporate the cookie butter and biscoff biscuits – especially for the added crunch! 10/10 for flavour and texture! So yummy!

    Reply
    1. Erin
      January 8, 2024

      Thanks Valerie! I’m a firm believer that cookie butter makes everything better 😉

      Reply
  3. Cortrice
    October 20, 2024

    5 stars
    I made this and I don’t even eat all of this in my oatmeal! LOVED IT!!😍

    Reply
  4. Amanda
    March 15, 2025

    5 stars
    The perfect sweet bfast! Easy and tasty

    Reply
    1. Erin
      March 17, 2025

      Thanks Amanda!

      Reply

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Hey, I’m Erin!

I like to describe PBF as a healthy eating blog with a dollop of indulgence. Here you’ll find high protein and veggie-packed meals with a side of cocktails and desserts.

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