Sweet, creamy and incredibly filling, these peanut butter overnight oats are the perfect solution for busy mornings. Made with just 5 simple ingredients and no yogurt, they come together in minutes and are ideal for meal prep. Prep them once, and you’ll have a nourishing, plant-based breakfast waiting for you all week long.
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Why You’ll Love These Overnight Oats
- Only 5 simple ingredients – no yogurt, no fillers
- Quick to make – ready in under 10 minutes
- Perfect for meal prep – keeps well for several days
- Naturally vegan when made with plant-based milk
- Gluten-free when using certified gluten-free oats
- Creamy and satisfying thanks to peanut butter and chia seeds
- Customisable – easy to adapt with flavours, toppings, or mix-ins
- No cooking required – perfect for warm weather or busy mornings
What Are Overnight Oats?
Unlike regular oatmeal porridge, overnight oats don’t require cooking, which means they can save you a ton of time, especially if your mornings are usually too busy to eat breakfast. They’re called overnight oats, because all you have to do is let them soak overnight.
The soaking also makes them much easier to digest. While oats soak, their starches break down, which not only improves their digestibility, but also greatly reduces their physic acid, which makes them more easily absorbed by your body. You don’t get that by just heating oats in the microwave or on the stove.
Ingredients and Substitutions
- Milk – Any milk works here, either dairy or plant-based. Almond, oat, soy, or cashew milk all make especially creamy overnight oats.
- Maple syrup – Adds gentle sweetness and blends smoothly into the oats.
You can swap for honey or agave syrup, or omit entirely for a less sweet version. - Peanut butter – Creates richness, flavour, and staying power. You can also use almond butter, cashew butter, sunflower seed butter, or even tahini.
- Chia seeds – Help thicken the oats while adding fibre and omega-3s.
Tip: Blending them creates a pudding-like texture. - Rolled oats – Old-fashioned rolled oats work best. Use certified gluten-free oats if needed. Instant oats become overly soft and mushy when used for overnight oats, so it’s best to avoid them.
How Long Do Overnight Oats Keep?
Overnight oats can be stored in an airtight container in the refrigerator for up to 5 days. They’re at their best during the first 2–3 days, but will continue to soften the longer they sit, which is great if you prefer ultra-creamy oats. Always give them a good stir before eating.
Optional Add-Ins & Flavour Variations
These oats are a blank canvas — here are some easy ways to switch things up.
Flavour Boosters
- Matcha powder for a gentle caffeine kick
- Cocoa powder for chocolate peanut butter oats
- Cinnamon or pumpkin spice for warmth
- Vanilla extract for extra depth
Crunch & Texture
- Chopped nuts (almonds, walnuts, pecans, hazelnuts)
- Cacao nibs
- Toasted coconut flakes
Fruit Add-Ins
- Mashed banana (extra creamy and naturally sweet)
- Blueberries, raspberries, or strawberries
- Grated apple or pear
Topping Ideas
Add toppings just before serving for the best texture:
- Sliced banana
- Fresh berries
- Extra peanut butter drizzle
- Chopped nuts or seeds
- Dark chocolate chips
- Coconut yogurt
Make-Ahead Breakfast Tip
Prepare several jars at once for a stress-free breakfast all week long. Grab one from the fridge, add your favourite toppings, and enjoy. No cooking required!
Peanut Butter Overnight Oats FAQs
You can, but the texture will be less smooth. Simply stir all ingredients together in a jar and the chia seeds will thicken the oats naturally.
Rolled oats are best. Quick oats tend to lose their texture and become mushy after soaking.
Yes. While traditionally eaten cold, you can warm them gently in the microwave or on the stove if you prefer.
Yes, they’re rich in fibre, healthy fats, and complex carbohydrates. Just be mindful of portion size and sweeteners.
Absolutely. These oats are ideal for batch prep. Just scale the ingredients and store in individual jars.
More Overnight Oats Recipes
- Banana Peanut Butter Overnight Oats
- Basic Peanut Butter Overnight Oats
- Traditional Bircher Muesli
- Apple Bran Porridge
Peanut Butter Overnight Oats Recipe
Ingredients
- ⅔ cup (160 ml) milk (dairy or plant-based)
- 1 teaspoon maple syrup
- 1 teaspoon peanut butter
- 1 tablespoon chia seeds
- ½ cup (40 g) rolled oats
Instructions
- Optional: Add the milk, maple syrup, peanut butter and chia seeds to a blender. Blend for 30–60 seconds, until the chia seeds are fully broken down and the mixture looks smooth and creamy.
- Stir all the ingredients, including the rolled oats, together and pour the mixture into a jar or airtight container. Close the lid and refrigerate overnight or for at least 8 hours, until thick and creamy.
- Give the oats a good stir before eating. Enjoy them cold straight from the fridge, or let them sit at room temperature for a few minutes if you prefer them less chilled.
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