If there’s one variety of overnight oats that I could eat over and over again, it’s this peanut butter flavor. The nut butter adds extra flavor and protein, making this recipe a filling meal prep breakfast idea.
Overnight oats are a relatively forgiving dish to make, so you don’t need to follow a precise recipe, but it can be annoying if you get the liquid ratio wrong. (This could lead to oats that are too thick or runny the next day.)
That’s why I’ve tested this recipe several different ways, so you’ll get delicious results on your first try. Customize it with your favorite fruit, and it will taste like a healthier PB&J!
⭐⭐⭐⭐⭐ Featured Review
“This is absolutely delicious and filling! I wasn’t hungry until lunch which never happens. My daughter even loved them.❤️ ” – Sarah
PB Overnight Oats Ingredients
Here’s what you’ll need:
- Rolled Oats. Old-fashioned rolled oats work best for overnight oats, so they won’t get too mushy as they soak up the milk. If you need a gluten-free breakfast, shop for “certified gluten-free” packaging to avoid cross-contamination.
- Milk. You can use any milk you prefer for this recipe, so choose a dairy-free option if you need to.
- Peanut Butter. For the best flavor, I like to use all-natural peanut butter (with salt). This means you’ll need to stir the oil into the peanut butter when you first open the jar.
- Maple syrup. This adds a touch of natural sweetness, but you can use honey or another preferred sweetener to taste.
- Ground Flax Seeds. These add fiber and help the oats thicken up even more. If you omit this ingredient, you might not need as much milk. (Or try chia seeds, instead.)
- Collagen (optional). I’ve started including this in my morning oats, because it adds protein without a noticeable flavor— especially since the peanut butter flavor helps hide it! This is option if you need a vegetarian option; or try using a protein powder you already enjoy.
How to Make Peanut Butter Overnight Oats
Step 1:
In a 12-ounce or larger mason jar, combine the oats, peanut butter, ground flax seed, maple syrup, collagen (if using), and milk of choice. Stir well to combine, making sure the oats are fully submerged in the liquid.
Secure the lid on the jar and store the oats in the fridge overnight. They will soften over time and will be ready to eat the next morning.
Step 2:
When you’re ready to eat, remove the jar from the refrigerator and add an extra splash of water or milk to loosen the texture, if you needed. There’s no need to reheat overnight oats; they are usually served chilled!
Add any toppings you like just before serving, such as chopped berries, sliced banana, or chocolate chips. Toppings make the texture better, in my opinion.
Storage & Meal Prep Tips
You can make overnight oats up to 3-4 days in advance, so feel free to double or triple the recipe if you want to have several days of breakfast ready in the fridge.
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In a 12-ounce or larger glass jar, combine the rolled oats, flax, peanut butter, maple syrup, collagen (if using), and milk. Stir well to mix.
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Secure a lid on the jar, then place it in the fridge to chill overnight. You can make this up to 3 days in advance, so feel free to double or triple the recipe to make more jars at once.
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In the morning, take the lid off the oats and stir well. Add any toppings you like, such as fresh fruit or an extra drizzle of peanut butter. These oats are ready to eat right away.
For extra protein, you can add a scoop of protein powder to this recipe, or replace the ground flax seed with hemp hearts. (Hulled hemp seeds.)
Update Note: This recipe was updated in January 2024 to use a 1/4 cup more liquid, which results in a better texture the next day.
Calories: 548kcal | Carbohydrates: 56g | Protein: 29g | Fat: 26g | Saturated Fat: 4g | Polyunsaturated Fat: 9g | Monounsaturated Fat: 10g | Sodium: 136mg | Potassium: 677mg | Fiber: 8g | Sugar: 20g | Vitamin A: 696IU | Vitamin C: 13mg | Calcium: 324mg | Iron: 4mg
More Recipes to Try
If you try this Peanut Butter Overnight Oats recipe, please leave a comment and star rating below letting me know how you like them.
