S’mores Overnight Oats with Chocolate and Marshmallow

Recipe Highlights

• High in protein: About 14 grams of protein per serving helps keep you full through the morning.
• Meal-prep friendly: Prepare multiple jars at once so breakfast is ready for the week.
• Dessert-like but balanced: Crushed graham crackers, mini marshmallows, and dark chocolate chips recreate s’mores while adding wholesome ingredients.
• Easy to customize: Swap graham crackers for spiced cookies, use sugar-free chocolate or marshmallows, or add a scoop of protein powder.

I first shared these on social media and the response was enthusiastic—thousands saved the idea to try later. I’ve made small tweaks since then and now present a refined version here so it’s easy to follow and save for meal planning.

The appeal is simple: creamy soaked oats combined with crushed graham crackers, mini marshmallows, and dark chocolate in each spoonful. If you enjoy chocolate-forward breakfasts, try other variations like chocolate overnight oats or a peanut-butter-chocolate style for more variety.

Make a double batch on Sunday and you’ll have grab-and-go breakfasts ready for several days—perfect for busy mornings.

Ingredient Notes & Substitutions

Rolled oats: Old-fashioned rolled oats give the best chewy texture after soaking. Quick oats can be used but yield a softer result. Avoid steel-cut oats for this method; they don’t soften enough without cooking.

Greek yogurt: Adds creaminess and boosts protein. Use your preferred fat level or a dairy-free alternative if needed.

Milk: Any milk works—dairy or plant-based. Unsweetened almond milk keeps the flavor light.

Graham crackers: Crushed graham crackers provide that classic s’mores flavor. You can replace them with speculoos/Biscoff cookies or a gluten-free cracker if desired.

Mini marshmallows & dark chocolate chips: These finish the dish and make it feel indulgent. For lower sugar, choose sugar-free or reduced-sugar options.

How To Make S’mores Overnight Oats

*Overview: full measurements and the printable recipe card appear later in the page.

Step 1: Combine the dry ingredients—oats, chia seeds, crushed graham crackers (or cookie substitute), mini marshmallows, and chocolate chips—into a mixing bowl or jar.

Step 2: Add the wet ingredients—Greek yogurt, maple syrup, milk, and vanilla—and stir until well combined.

Step 3: Mix thoroughly so the oats and chia seeds absorb the liquids.

Step 4: Cover and refrigerate for at least 4 hours or overnight for the best texture. Before serving, add a few extra graham cracker crumbs or chocolate chips for crunch.

How To Store

Keep S’mores Overnight Oats in sealed jars or airtight containers in the refrigerator for up to 4 days. Store crunchy toppings separately and add them just before eating to preserve texture.

Jess’s Tips

• Chill long enough: Allow at least 4 hours for the oats to soften; overnight is preferable.
• Add toppings at serving: Keep extra graham cracker crumbs and chocolate chips on the side if preparing jars ahead of time to maintain crunch.
• Protein boost: Stir in a scoop of vanilla or chocolate protein powder before refrigerating if you want more protein.
• Kid-friendly: The s’mores theme makes oatmeal fun for children—mini marshmallows are usually a hit.

Frequently Asked Questions