S’mores Overnight Oats – Quick and Healthy Breakfast Treat

Total Time: 5 minutes prep + 4–8 hours chill
Difficulty Level: Easy

If you love the nostalgic flavors of a campfire classic but want something nourishing enough to power your morning, these S’mores Overnight Oats are about to become your new favorite breakfast ritual. Imagine waking up to layers of creamy chocolate oats, hints of toasted marshmallow sweetness, and the comforting crunch of graham crackers—all waiting for you in the fridge. It’s cozy, chocolatey, and just indulgent enough to feel like dessert, yet balanced enough to keep you energized all morning long.

Each spoonful brings together rich cocoa, velvety yogurt, and subtle vanilla warmth, with little bursts of chocolate chips tucked throughout. The texture is thick and pudding-like, softened overnight into creamy perfection while still offering a gentle chew from hearty oats. There’s something magical about transforming simple pantry ingredients into a no-cook breakfast that tastes like a summer evening around the fire.

This recipe is perfect for busy weekdays, school mornings, post-workout fuel, or even a fun weekend brunch treat. Kids adore the dessert-inspired flavor, while adults appreciate the fiber, protein, and sustained energy it provides. Each serving contains approximately 350–450 calories, depending on toppings and mix-ins, with around 18–25 grams of protein for a satisfying and balanced start to your day.

Table of Contents

Table of Contents

S’mores Overnight Oats Key Ingredients

Let’s break down the ingredients that give these oats their signature s’mores flavor while keeping them wholesome and nourishing.

Old-Fashioned Rolled Oats (1/2 cup) – The sturdy base that softens overnight while maintaining a satisfying texture.

Unsweetened Almond Milk (2/3 cup) – Adds moisture and light nuttiness without overpowering the chocolate flavor.

Plain Greek Yogurt (1/4 cup) – Boosts creaminess and protein while adding a subtle tang for balance.

Unsweetened Cocoa Powder (1 tablespoon) – Provides deep chocolate flavor and that classic campfire vibe.

Vanilla Protein Powder (1 scoop, optional) – Increases protein and enhances sweetness with a creamy vanilla note.

Chia Seeds (1 tablespoon) – Thickens the mixture naturally and adds fiber and omega-3s.

Maple Syrup (1–2 teaspoons) – Offers natural sweetness and complements the chocolate beautifully.

Vanilla Extract (1/2 teaspoon) – Brings warmth and enhances the marshmallow-like flavor.

Mini Chocolate Chips (1 tablespoon) – Adds bursts of melty chocolate in every bite.

Crushed Graham Crackers (1–2 tablespoons) – Essential for that authentic s’mores crunch and honeyed flavor.

Mini Marshmallows (2 tablespoons) – Soft sweetness that mimics toasted marshmallow goodness.

Pinch of Sea Salt (1/8 teaspoon) – Balances sweetness and deepens the chocolate notes.

Ground Flaxseed (1 tablespoon) – Adds extra fiber and a subtle nutty undertone.

Almond Butter (1 tablespoon, optional) – Enhances richness and keeps the oats extra satisfying.

Extra Milk (1–2 tablespoons as needed) – Adjusts consistency after chilling.

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S’mores Overnight Oats How to Make It (Step-by-Step Method)

Step 1: Combine Dry Ingredients

In a medium bowl or mason jar, stir together the rolled oats, cocoa powder, chia seeds, flaxseed, protein powder (if using), and sea salt. Mix thoroughly to evenly distribute the cocoa and prevent clumps.

Step 2: Add the Creamy Elements

Add the Greek yogurt, almond butter (if using), maple syrup, and vanilla extract. Stir until smooth. The mixture will start to resemble thick chocolate batter.

Step 3: Pour in the Milk

Gradually pour in the almond milk while stirring continuously. This helps dissolve the cocoa and protein powder evenly. Mix until fully combined and creamy. The mixture should be slightly loose at this stage, as it will thicken overnight.

If it looks too thick, add 1–2 tablespoons of additional milk.

Step 4: Fold in the Mix-Ins

Gently stir in half of the chocolate chips and half of the crushed graham crackers. Reserve the rest for topping. For a layered effect, you can sprinkle some graham cracker crumbs along the sides of the jar.

Step 5: Chill Overnight

Cover the jar tightly and refrigerate for at least 4 hours, preferably overnight (8 hours). During this time, the oats soften and absorb the chocolate mixture, creating a thick, pudding-like consistency.

Step 6: Add Marshmallows Before Serving

Stir the oats in the morning. Top with mini marshmallows, remaining chocolate chips, and crushed graham crackers. For a fun twist, you can briefly toast the marshmallows with a kitchen torch for that authentic campfire finish.

Step 7: Adjust Texture if Needed

If the oats are thicker than you prefer, stir in a splash of milk until you reach your desired consistency.

S’mores Overnight Oats Serving Suggestions

S’mores Overnight Oats are incredibly versatile when it comes to presentation. For busy mornings, keep things simple by storing them in individual mason jars with tight-fitting lids. Sprinkle the reserved graham cracker crumbs and chocolate chips on top right before heading out the door. The layered look through the glass—dark chocolate oats, creamy streaks of yogurt, and golden graham crumbs—makes breakfast feel extra special, even if you’re eating it at your desk.

If you’re serving these oats as part of a brunch spread, elevate the presentation by spooning them into wide bowls. Top with a generous handful of mini marshmallows and lightly toast them for that gooey, caramelized finish. Add fresh strawberries or banana slices on the side to brighten up the chocolate richness. A drizzle of almond butter across the top adds visual appeal and extra depth of flavor.

For a fun family-style option, create a “build-your-own s’mores oat bar.” Lay out bowls of toppings such as shredded coconut, extra graham crackers, cacao nibs, sliced fruit, nut butters, and yogurt dollops. Let everyone customize their bowl, turning breakfast into a creative and interactive experience. These oats also work beautifully as a healthy dessert alternative—serve chilled in small dessert glasses with layered toppings for a guilt-free sweet treat after dinner.

S’mores Overnight Oats Storage + Meal Prep

These oats are ideal for weekly meal prep. Once assembled, they can be stored in airtight containers in the refrigerator for up to 4–5 days. The flavors continue to develop as they sit, and the texture becomes even more cohesive and creamy after the first 24 hours. For best results, keep crunchy toppings like graham crackers separate and add them just before serving to maintain texture.

If preparing multiple jars for the week, label them with the date so you can enjoy them at peak freshness. Should the oats thicken too much after a few days, simply stir in a tablespoon or two of milk to loosen the consistency. A small drizzle of maple syrup can refresh sweetness if needed.

Freezing is not highly recommended, as the texture of oats and yogurt may become slightly grainy once thawed. However, if you choose to freeze, leave out the yogurt and marshmallows and add them fresh after defrosting overnight in the refrigerator.

To keep the “s’mores” vibe alive on day two or three, consider lightly toasting fresh marshmallows before adding them on top. This simple step restores that classic campfire magic and makes your meal-prep breakfast feel freshly made every time.

Conclusion

S’mores Overnight Oats are proof that healthy breakfasts can still be fun, nostalgic, and packed with flavor. With rich chocolate, creamy texture, and playful marshmallow sweetness, this recipe brings comfort and convenience together in one jar. It’s the perfect balance of indulgence and nourishment, offering fiber, protein, and sustained energy without sacrificing taste.

Whether you’re fueling a busy weekday, preparing ahead for the week, or simply craving something chocolatey in the morning, these oats deliver satisfaction with every spoonful. Try them once, customize the toppings to your liking, and enjoy a breakfast that feels like a sweet treat—without ever needing a campfire.