Copycat Starbucks S’mores Chocolate Frappuccino Recipe

If you’ve ever waited all year for Starbucks to bring back their S’mores Frappuccino, only to have it vanish before you even get a second sip, this homemade version is your delicious revenge. It’s thick, cold, and wildly nostalgic, like a campfire treat blended into a coffee milkshake. Marshmallow whipped cream swirls in with milk chocolate fudge, a hit of sweet coffee, and just enough graham cracker to make you feel like you’re barefoot under the stars again.

I still remember the first time I had one at the drive-thru, it was sticky hot outside, middle of July, and I was not in the mood for anything warm. That first sip hit like magic. Chocolatey, creamy, fluffy on top with just the right amount of crunch. It didn’t taste like coffee. It tasted like summer memories, toasted marshmallows, and staying up way past bedtime.

This copycat Starbucks S’mores Chocolate Frappuccino tastes exactly like the original, maybe even better. You can layer it with your own sauce, boost the coffee, or tweak it dairy-free. It’s built for sweet-tooth dreamers and coffee lovers alike.

How to Make Starbucks S’mores Chocolate Frappuccino

Start with cold coffee, milk, vanilla or marshmallow syrup, and ice. Blend until it’s thick and creamy, not icy. While that’s blending, swirl some milk chocolate sauce and marshmallow whipped cream into your glass. Once the drink goes in, you finish it with more whipped cream and crushed graham crackers. You’re not just making a drink. You’re building dessert in a cup.

Nutrition Facts (per 16 oz serving)

• Calories: 490
• Total Fat: 19 g
• Saturated Fat: 12 g
• Carbohydrates: 78 g
• Sugar: 64 g
• Protein: 6 g

Ingredients (1 serving, 16 oz)

Prep Time: 5 minutes
Cook Time: 0 minutes
Total Time: 5 minutes
Servings: 1

• ¾ cup whole milk
• ¼ cup strong brewed coffee or 1 shot cooled espresso
• 2 tablespoons marshmallow or vanilla syrup
• 1 teaspoon unsweetened cocoa powder (optional, for extra chocolate hit)
• 1/8 teaspoon xanthan gum (or 1 tablespoon instant vanilla pudding mix)
• 1 to 1¼ cups ice
• 2 tablespoons milk chocolate sauce (plus more for drizzle)
• 1 tablespoon graham cracker crumbs

For Marshmallow Whipped Cream:

• ½ cup heavy cream
• 2 tablespoons marshmallow syrup or 1 tablespoon marshmallow fluff
• Pinch of salt (optional, makes the sweetness pop)

Tools You’ll Need

• Blender
• Measuring cups and spoons
• Tall 16 oz glass
• Ice cream scoop or spoon
• Piping bag or spatula for layering cream
• Straw

Instructions

Step 1: Make the Marshmallow Whipped Cream (2 min)

Whip heavy cream and marshmallow syrup (or fluff) together until thick, with soft-to-stiff peaks. Keep chilled while you prep the rest.

Step 2: Prepare the chocolate base (30 sec)

Drizzle milk chocolate sauce around the bottom and inner sides of your glass. Add 2 tablespoons of marshmallow whipped cream to the bottom.

Step 3: Blend the frappuccino (1 min)

Add milk, cooled coffee, syrup, cocoa powder (if using), xanthan gum, and ice to the blender. Blend until thick and smooth, but don’t let it turn watery.

Step 4: Assemble (30 sec)

Pour the blended frappuccino mixture gently into your prepared glass over the chocolate and cream.

Step 5: Top and garnish (30 sec)

Add a generous swirl of marshmallow whipped cream on top. Drizzle with chocolate sauce and sprinkle with graham cracker crumbs. Insert straw. Sigh happily.

Tips

• Use cold brewed coffee or chilled espresso for best flavor and texture.
• Chill your serving glass for 5–10 minutes in the freezer for a café-style frosty finish.
• Want it thicker? Add more ice. Thinner? Add a splash more milk.
• Don’t over-blend or you’ll lose the icy texture and turn it into chocolate milk.
• No marshmallow syrup? Whisk a spoon of fluff with a bit of cream and a splash of vanilla.

What to Serve With

Sweet & Crunchy

• Chocolate-dipped graham crackers – It’s basically turning your drink into a plated dessert. Dip, sip, repeat.
• Toasted marshmallows on the side – Go full s’mores theme. A little torch or oven broil works.
• Mini fudge brownies – Soft and rich, these make the perfect chewy sidekick to a cold, creamy drink.

Savory & Salty

• Salted kettle chips – Trust me, the salt-and-sugar combo is unbeatable. It scratches both cravings at once.
• Ham and cheese sliders – Tiny, warm, melty. You get the richness of savory with the chill of sweet.
• Breakfast sausage links – If you’re sipping this as a mid-morning treat, sausage brings a hot, savory punch that balances the sugar.

Morning Snack Pairings

• Peanut butter toast with honey drizzle – Sweet, nutty, and so satisfying next to a cold chocolatey drink.
• Crispy bacon strips – Bacon + sweet coffee? Always a win.

Variations

S’mores Iced Mocha

Skip the blender. Just mix milk, coffee, and syrup over ice, then top with chocolate sauce and marshmallow whipped cream. Same flavor, no blending.

Double Chocolate Version

Use chocolate milk instead of regular milk, and add an extra spoon of cocoa powder. Chocolate lovers, this one’s for you.

Kid-Friendly Dessert Frappe

Leave out the coffee entirely. Use more milk or even chocolate milk instead for a caffeine-free s’mores milkshake.

Campfire Boozy Shake

Add 1 oz of bourbon or coffee liqueur to the blender for a grown-up version. Sip it slowly by a real (or imaginary) fire.

S’mores Protein Boost

Add a scoop of chocolate or vanilla protein powder and use unsweetened almond milk to turn this into a gym treat disguised as dessert.

Ingredient Substitutes

Milk

• Original: Whole milk
• Substitutes: Almond milk, oat milk, coconut milk, or 2% if you want it lighter

Coffee

• Original: Brewed coffee or espresso
• Substitutes: Instant espresso (1 tsp + 2 tbsp hot water), decaf, or cold brew concentrate

Marshmallow Syrup

• Original: Marshmallow syrup
• Substitutes: Marshmallow fluff (1 tbsp), vanilla syrup, or homemade simple syrup infused with marshmallows

Milk Chocolate Sauce

• Original: Store-bought or homemade milk chocolate sauce
• Substitutes: Hot fudge sauce, chocolate syrup (sweeter), or Nutella thinned with a splash of milk

Xanthan Gum

• Original: Xanthan gum
• Substitutes: Instant pudding mix (1 tbsp), or leave it out if texture isn’t a concern

Graham Cracker Crumbs

• Original: Crushed graham crackers
• Substitutes: Crushed digestive biscuits, crushed Biscoff cookies, or crushed vanilla wafers

Marshmallow Whipped Cream

• Original: Homemade whipped cream with marshmallow syrup
• Substitutes: Regular whipped cream, coconut whipped topping, or skip it and go pure chocolate on top

Honest Review

After a few rounds of blending, layering, and adjusting, this copycat Starbucks S’mores Chocolate Frappuccino honestly came out better than I expected. The first version was too icy. The second was too sweet. But this one? It hits that summer-camp-meets-drive-thru vibe just right.

The marshmallow whipped cream is the real star, fluffy, sweet, and slightly nostalgic, like a roasted marshmallow that never made it to the stick. Paired with the milk chocolate sauce and graham cracker crumbles, it’s a flavor throwback in all the best ways.

Would I say it’s exactly like the Starbucks original? Not completely. I’m guessing they’ve got some commercial-grade stabilizers and syrups that keep everything ultra-consistent. Mine separated a bit if I didn’t drink it fast enough (not a problem, honestly). But flavor-wise? Oh, it delivers. The coffee is gentle, the sweetness is bold, and the texture, with a touch of xanthan or pudding mix, is surprisingly close to that thick, creamy consistency they’re known for.

If you love the seasonal S’mores Frappuccino but hate waiting for Starbucks to bring it back, or just want to save a few dollars and stay in your PJ pants… this version totally scratches the itch. It’s the kind of recipe I’ll keep bookmarked for long summers, late-night cravings, or just days when I want dessert disguised as coffee.