S'mores Overnight Oats

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This s’mores overnight oats recipe is a delightful way to start your day with a classic campfire dessert. Thick, creamy, and made with a handful of ingredients, it is an indulgent breakfast but also full of wholesome ingredients that will keep you feeling satiated.

Full of protein, fiber, and healthy fats, this s’mores overnight oats recipe will keep you feeling full all morning. You’ll love how this overnight oats recipe will remind you of making s’mores by a campfire.

A slightly overhead view of a jar of s'mores overnight oats topped with graham crackers, marshmallows, and mini chocolate chips.

What Are Overnight Oats?

Overnight oats are a no-cook method of making oatmeal! It’s made by soaking rolled oats in some liquid overnight so they become soft and digestible.

Why You’ll Love This Recipe

Overnight oats are super quick and easy to prepare! Simply stir everything together in a mixing bowl and let it set overnight in the fridge.
Full of protein, fiber, and healthy fats, this s’mores overnight oats recipe will keep you feeling full and satisfied until lunch. There’s nothing worse than mid-morning hunger pangs!
Rolled oats and chia seeds are budget-friendly ingredients that you can buy in bulk. When stored correctly, they last at least a year.

Ingredients You’ll Need

Ingredients needed to make s'mores overnight oats.

rolled oats — make sure you are using old-fashioned rolled oats. Instant oats and quick oats do not hold up as well, so I do not prefer the texture compared to rolled oats. Oats are a great source of complex carbohydrates and are high in fiber, giving you energy. You can read more about the benefits of oats here.
Greek yogurt — to help with the creaminess of the overnight oats, the yogurt gives the overnight oats a creamy texture. Using Greek yogurt will add some extra protein to the overnight oats.
chia seeds — chia seeds come in both black and white seeds, but there is no difference in nutritional content. They’re also an excellent source of plant-based protein and are high in omega-3 fatty acids and fiber! When they absorb the milk and yogurt, it helps thicken the overnight oats.
marshmallow fluff — a couple of spoonfuls of marshmallow fluff will give you the classic s’more flavor! You can find it online or in stores, usually by the ice cream sundae toppings (like chocolate sauce). Speaking of chocolate sauce, you can add a drizzle on top of these overnight oats when serving for more chocolate flavor!
milk — you can use any milk of your choice, from cow’s milk to non-dairy milk. I personally prefer whole milk, but it’s up to you!
maple syrup — you don’t need a lot as the other ingredients and toppings are on the sweeter side but I still like to add a splash or two.
mini chocolate chips — stir some mini chocolate chips into the overnight oats for some delicious chocolate flavor. You can use regular chocolate chips if that’s all you have on hand. I prefer the mini chocolate chips as you can get them more evenly distributed in the overnight oats.
toppings — ok, usually toppings for overnight oats are optional, but for this s’mores version, I highly recommend them! They really add to the s’more vibe. I serve these overnight oats with mini marshmallows, graham crackers, and mini chocolate chips.

How to Make S’mores Overnight Oats

Set of two photos showing ingredients added to a bowl and mixed.

To a bowl, add the rolled oats, Greek yogurt, chia seeds, marshmallow fluff, milk, mini chocolate chips, and maple syrup.

Set of two photos showing s'mores overnight oats set overnight in a bowl and served in a jar with toppings.

Stir until well combined. Cover with a lid or plastic and refrigerate for at least 3 to 4 hours or overnight.
When ready to enjoy, top each serving of overnight oats with a broken-up graham cracker, mini marshmallows, and mini chocolate chips.

Recipe Tips and Notes

You can use a bit of kefir in place of the milk for some extra probiotics. You can add even more protein to this by using Fairlife’s ultra-filtered milk. I love their milk!
For an on-to-go meal, I like to store the protein overnight oats in mason jars. 16-ounce wide-mouth mason jars are great if you plan on adding toppings, so you don’t spill anything. I also LOVE a good weck jar.
Make sure to stir the overnight oats well, as chia seeds can clump up. You can give it a second stir after the overnight oats sit in the fridge for a while.
If you prefer a thinner consistency to your overnight oats, add more milk.
If you would like more protein, you can add vanilla protein powder! You can also get specific high protein milk to use instead of regular milk. You can read more about high protein milk here.

A jar of s'mores overnight oats on a wooden board surrounded by toppings and more jars off to the side.

Make Ahead Tips

Meal prep: once s’mores overnight oats without any toppings in an airtight container for up to 5 days in the fridge.
Freezer: to freeze overnight oats, portion out the oats in small containers, then freeze! Thaw the overnight oats in the fridge for 6-8 hours/overnight before you’d like to eat them. You can store the overnight oats in the freezer for up to 2 months.

Are overnight oats healthy?

While I don’t consider marshmallow fluff to be healthy, the rest of the ingredients in the overnight oats are rich in fiber, protein, and antioxidants. They also contain a wide range of vitamins and minerals!

Can you use steel-cut oats for overnight oats?

While you can use steel-cut oats, keep in mind that steel-cut oats will need to be soaked longer, and the texture will be dense and chewy in comparison. This overnight oats recipe, in particular, uses rolled oats, so I recommend following the recipe if this is your first time making overnight oats.