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Peanut Butter Brownie Overnight Oats

This healthy and easy breakfast in a jar is about to be your new favorite simple make-ahead meal. Peanut Butter Brownie Overnight Oats are made without yogurt (vegan by default), and are rich with chocolate flavor thanks to cocoa/cacao powder.

peanut butter overnight oats in a glass with fruit, oats, and a spoon on a wooden board

For years whenever I saw someone making overnight oats I gagged a little in my mouth. It sounded so disgusting!

Then my friend started making them for make-ahead breakfasts and mentioned they were delicious. I decided to trust her recommendation and try them myself. The first bite was taken cautiously, but it turns out they’re freaking amazing.

Who knew? Oh, everyone but me? I’m not an early adopter by any means.

Peanut butter overnight oats are a meal prepper’s dream. They are so good, can keep for a few days in the fridge, and take less than 5 minutes to throw together. Even better, they’re filling and it tastes like you’re eating brownie batter for breakfast.

Win. Freaking. Win.

So What’s In This Peanut Butter Overnight Oats Recipe?

We have oats (duh), vanilla extract (try homemade), peanut butter/almond butter, milk, dark cocoa powder, chia seeds, and maple syrup.

The oats I use are old-fashioned. You can use quick cooking oats if that is what you have on hand, but the texture may be a little mushier than old-fashioned oats.

As for the milk, use whatever you prefer/have lying around. Cow’s milk or any non-dairy milk is delicious in this. I’ve used regular milk, coconut milk, cashew milk, and almond milk and the results are always tasty.

When I say maple syrup, I mean the good stuff. The pure syrup that came from a tree, and NOT the pancake fake syrup. Don’t do it!

a wooden board with oats, milk, and other ingredients for peanut butter overnight oats

Do You Need to Put Chia Seeds in Peanut Butter Overnight Oatmeal?

No, it isn’t necessary, but it is delicious and will give you an awesome boost of fiber and omega-3 fats. “Chia” means strength in the Mayan language so um, let’s get on that.

Can You Make Overnight Oats With Just Milk?

So you want to leave out all the yummy stuff and just use milk? Fine, be that way.

Yes, of course, you can but it is just going to taste like plain ol’ oatmeal. But maybe that is your thing and you love it. More power to you.

How Long Can You Leave Overnight Oats in the Fridge?

I’ve experimented with this and it seems like 6-7 days is about the max time the overnight oats can chill in the fridge. That being said, that is a long time for a ready-made breakfast and that makes this a meal prep dream!

When making peanut butter overnight oats I mix everything in a pint wide-mouth canning jar. It makes two servings and it is ready to go in its own carrying case. If you need to split this up amongst multiple people, mix in a bowl and then transfer to two 8 oz jam jars.

Can You Put Overnight Oats in the Microwave?

Yes! Some people want to take the chill off of the oats and popping them in the microwave for 30-60 seconds will accomplish that.

Here’s How to Make Them:

  1. Combine maple syrup, peanut butter, cocoa powder, and chia seeds in a canning jar or bowl. Mix to form a paste and to get the chunks out of the nut butter.
  2. Add the milk and oats and stir!
  3. Cover and place in the fridge for at least 6-8 hours. Enjoy cold or warmed.three process photos of making peanut butter overnight oats

Variations:

  • Mix in 1 banana and an additional 1/4 cup of milk for chocolate peanut butter banana overnight oats!
  • Top with or mix in unsweetened coconut for an Almond Joy style overnight oat.
  • Walk on the wild side and add 1/2 tsp of mini chocolate chips for some fun and crunch.

overhead photo of peanut butter overnight oats on a wooden board with a blue cloth and spoon

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Print
5 from 1 vote
Peanut Butter Brownie Overnight Oats
Prep Time
5 mins
Total Time
5 mins
 

This healthy and easy breakfast in a jar is about to be your new favorite simple make-ahead meal. 

Course: Breakfast
Cuisine: American
Keyword: make ahead breakfast, Peanut butter overnight oats
Servings: 2
Calories: 299 kcal
Author: Sarah Cook - Sustainable Cooks
Ingredients
Instructions
  1. Combine maple syrup, peanut butter, cocoa powder, and chia seeds in a canning jar or bowl. Mix to form a paste and to get the chunks out of the nut butter.


  2. Add the milk and oats and stir!

  3. Cover and place in the fridge for at least 6-8 hours. Enjoy cold or hot.

Recipe Notes

Adjust the maple syrup to taste. 2 tsp is the middle ground for sweetness.

Nutrition Facts
Peanut Butter Brownie Overnight Oats
Amount Per Serving (4 oz)
Calories 299 Calories from Fat 99
% Daily Value*
Total Fat 11g 17%
Saturated Fat 3g 15%
Cholesterol 12mg 4%
Sodium 92mg 4%
Potassium 359mg 10%
Total Carbohydrates 40g 13%
Dietary Fiber 5g 20%
Sugars 11g
Protein 11g 22%
Vitamin A 4%
Calcium 17.3%
Iron 10.4%
* Percent Daily Values are based on a 2000 calorie diet.

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This healthy and easy breakfast in a jar is about to be your new favorite simple make-ahead meal. Peanut Butter Brownie Overnight Oats are made without yogurt (vegan by default), and are rich with chocolate flavor thanks to cocoa/cacao powder. #sustainablecooks #overnightoats #vegan #makeahead #easybreakfast #dairyfree

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12 comments on “Peanut Butter Brownie Overnight Oats”

  1. Making some as soon as I get out of this chair! I’ve been tempted to try overnight oats, but I was too lazy to Google it. I think I even have all the ingredients.
    Have you tried any other flavors?

    • You can do it Tina! I haven’t tried other flavors. Yet. Simply because this one is so yummy and I can’t get enough.

      • Took a couple of days, but I finally have a jar in the fridge!
        I’m thinking your cooked apples would be good in oatmeal (Apple cinnamon oatmeal has always been my favorite).

      • Ohhh that’s a great idea Tina! Can’t wait to hear tomorrow what you think of them.

  2. I love my overnight oats. Went thru a chocolate PB phase. Then frozen blueberries. Now I’m stuck on mochachino version that is mostly healthy. Add frozen strawberries at night and a little dark Hershey’s syrup in the am. Oh. Mylanta. I make sure I make faces so everyone thinks it’s gross, lol. 
    I use every muffin tin I have and set them in a row. Then I put Walmart’s square snack bag in each muffin hole. I start with the oats and put all my ingredients in each bag. As soon as I finish my breakfast I clean my jar, make tomorrows batch and throw in fridge. I store my little used baggies (looks like a druggie bag, lol) and reuse the next batch. Beats getting out all my dry ingredients every week. 
    Now my nieces know where the oat bags are and try to steal them. 
    You will have to experiment and give us more ideas. I love flax seed in mine also w the chia 

  3. I LOVE LOVE LOVE overnight oats but have since found out thru an elimination diet that’s oats & my digestive system are not friends, even GF oats are no bueno. So I made this tonight for the hubs breakfast tomorrow. I will report back how much he loved it!

    • Our friend who did a Whole30 also found that oats were one of her issues. I’m sorry to hear that is the case for you too.

      Can’t wait to hear his thoughts on them!

      • So my hubs loved this! He said it tasted like chocolate peanut butter pudding. It’s a keeper. Oh & tell your friend. I made myself an overnight oat recipe using buckwheat groats & while it certainly isn’t the same, it wasn’t terrible. She might want to give it a try.

      • Who-hoo!!! Glad it was a hit with the hubs, and I love the idea of using groats.

  4. I made mine with almond butter and subbed honey for the maple. It tasted great! My favorite fridge oats flavor so far.