High-Protein S’mores Overnight Oats
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These s’mores overnight oats taste like dessert but are packed with over 25g of protein. Creamy, easy to make and the perfect make-ahead breakfast for summer!
If you’ve tried my strawberry cheesecake overnight oats or tiramisu overnight oats, you know I love turning dessert flavors into high-protein breakfasts. And that’s exactly what I did with this s’mores overnight oats recipe.
It has all the flavors of a classic s’mores, but in a chilled, make-ahead breakfast that actually keeps you full. No campfire needed! Trust me, you’re going to want these in your fridge all summer long.
Table of Contents
Why I Love These S’mores Overnight Oats
- Actually filling: Packed with over 25g of protein from the oats, protein powder, and chia seeds, this keeps you full for hours, not just a quick sugar crash.
- No cooking required: Just mix everything together, let it sit, and it’s ready when you wake up.
- Easy to prep ahead: Perfect for busy mornings when you don’t want to think about breakfast.
If you love s’mores flavors like I do, you’ll also love my s’mores baked oatmeal, protein frozen s’mores and s’mores cookies.
Ingredients Needed
- rolled oats – old-fashioned oats are key here. They soften overnight without turning mushy, which is exactly what you want for that classic overnight oats texture.
- almond milk – I usually use unsweetened almond milk to keep things lighter (store-bought or homemade almond milk works), but any milk works here.
- vanilla protein powder – adds sweetness and boosts the protein so this actually keeps you full. I like using Truvani vanilla whey protein powder because it blends smoothly and doesn’t get chalky, which makes a big difference in overnight oats.
- chia seeds – these help thicken the oats as they sit and give you that creamy, almost pudding-like consistency by morning.
- mini marshmallows – this is what gives you that s’mores feel. They soften overnight but still add little pockets of sweetness throughout.
- graham crackers – a must for that classic s’mores flavor. I used Simple Mills Honey Cinnamon Sweet Thins to keep this recipe gluten-free, but regular graham crackers work just the same.
- mini chocolate chips – can’t have a s’mores without chocolate. Mini chips work best so they’re evenly distributed.
Find the full ingredient list with measurements in the recipe card below.
How to Make S’mores Overnight Oats
Step 1: Stir together the milk, oats, protein powder, chia seeds, vanilla and salt until fully combined.
Step 2: Mix in the marshmallows, graham crackers, and chocolate chips, then cover and refrigerate for at least 4 hours or overnight. Add toppings before serving if desired.
Brittany’s Recipe Tips
- Use a protein powder you actually like: The flavor really comes through here, so make sure it’s one you enjoy.
- Whey vs. plant-based protein: I recommend using a smooth vanilla whey protein powder for the creamiest texture. If you’re using a plant-based protein, the oats will likely be thicker and a bit more dense, so you may need more milk. I’d start with about 1 cup and adjust from there.
- Adjust the liquid as needed: Overnight oats can thicken a lot depending on your protein powder and chia seeds. If it’s too thick in the morning, just add a splash of milk and stir.
- Add toppings right before serving: The graham crackers and marshmallows soften overnight, which gives great flavor, but if you want that classic s’mores texture, sprinkle a little extra on top right before eating.
How to Store & Meal Prep
This is one of those breakfasts that’s made for prepping ahead, which is a big part of why I love it.
- Refrigerator: Store in a sealed jar or airtight container in the fridge for up to 3–4 days. The oats will continue to thicken as they sit.
- Before serving: Give it a good stir and add a splash of milk if it’s thickened too much overnight. I also like adding a few fresh toppings right before eating for the best texture (especially extra graham crackers and marshmallows).
Frequently Asked Questions
Yes! You can leave it out and the oats will still be creamy and flavorful, just a little less sweet and not as filling. If you skip it, you may want to add a small drizzle of maple syrup or honey to balance the flavor.
This usually comes down to the protein powder and chia seeds. If your oats are too thick in the morning, just stir in a splash of milk until you reach your desired consistency. If you’re using a plant-based protein, you may need a bit more liquid.
More Overnight Oats to Try
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S’mores Overnight Oats
Ingredients
- ¾ cup unsweetened almond milk, or milk of choice
- ½ cup old-fashioned rolled oats
- 1 scoop vanilla whey protein powder
- ½ Tablespoon chia seeds
- ½ teaspoon vanilla extract
- pinch of sea salt
- 6 mini marshmallows, chopped
- 3 Simple Mills Honey Graham Sweet Thins, crushed, about 1 Tablespoon, or regular graham crackers
- ½ Tablespoon mini chocolate chips
Optional toppings
- crushed graham crackers
- mini marshmallows
- mini chocolate chips
Instructions
- Add almond milk, oats, protein powder, chia seeds, vanilla and salt to a jar or bowl. Stir well until fully combined.½ cup old-fashioned rolled oats, ¾ cup unsweetened almond milk, 1 scoop vanilla whey protein powder, ½ Tablespoon chia seeds, ½ teaspoon vanilla extract, pinch of sea salt
- Stir in the mini marshmallows, crushed graham crackers and chocolate chips.6 mini marshmallows, 3 Simple Mills Honey Graham Sweet Thins, ½ Tablespoon mini chocolate chips
- Cover and refrigerate overnight, or for at least 4 hours.
- Before serving, top with extra graham crackers, marshmallows and chocolate chips, if desired.crushed graham crackers, mini marshmallows, mini chocolate chips
Notes
- Storage + meal prep: Store overnight oats in an airtight container or jar in the fridge for up to 3–4 days. The oats will thicken as they sit, so give them a good stir and add a splash of milk before serving if needed. Perfect for prepping a few jars ahead for the week.
- Protein powder: I used a vanilla whey protein powder for the creamiest texture. If you’re using a plant-based protein, the oats will likely be thicker and a bit more dense, so you may need more milk. I recommend starting with about 1 cup and adjusting as needed.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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