If there’s one treat that screams classic diner nostalgia, it’s the iconic In-N-Out Neapolitan milkshake. Familiar to devoted fans of the West Coast burger chain, this creamy shake combines chocolate, strawberry, and vanilla ice creams for a triple-flavored delight that’s both visually striking and irresistibly tasty. Whether you’ve sipped one alongside a Double-Double or you’re simply craving that secret menu magic, nothing beats the satisfaction of enjoying this layered milkshake at home.
This Copycat In-N-Out Neapolitan Milkshake recipe shows you exactly how to reproduce the frosty, thick, and perfectly swirled treat—no drive-thru required! With a few simple ingredients and a couple insider techniques, you can whip up restaurant-quality shakes for summer parties, weeknight desserts, or anytime you need something sweet. Want more delicious sips? Check out our drinks guide or explore our collection of decadent treats for more inspiration!
Table of Contents
How to make Neapolitan Milkshake
Creating the perfect Neapolitan milkshake is all about layering flavors. You’ll blend three individual milkshakes—chocolate, strawberry, and vanilla—then gently swirl them in a tall glass for those classic stripes. With real ice cream and a little patience, you’ll get a shake that rivals the original.
Nutrition facts
This Neapolitan milkshake is a dessert treat, so it’s rich and creamy—exactly as it should be! Each serving packs about 500 calories, most of which come from the high-quality ice cream. You’ll get about 22g fat and 60g carbs, mostly sugars. Enjoy as an indulgent reward or share with a friend!
Ingredients
- 1 cup chocolate ice cream — 🛒 Buy on Amazon
- 1 cup vanilla ice cream — 🛒 Buy on Amazon
- 1 cup strawberry ice cream — 🛒 Buy on Amazon
- 1 1/2 cups whole milk, divided — 🛒 Buy on Amazon
- Whipped cream (for topping) — 🛒 Buy on Amazon
- Chocolate syrup (optional, for garnish) — 🛒 Buy on Amazon
- Sprinkles (optional) — 🛒 Buy on Amazon
Tools you’ll need
- Blender
- Tall glasses
- Long-handled spoon or skewer
- Measuring cups
- Ice cream scoop
Instructions
- 1. Gather Ingredients: Prepare all your ice cream scoops—chocolate, vanilla, and strawberry—and chill your glasses for the best results.
- 2. Blend Each Flavor: In your blender, combine one flavor of ice cream with 1/2 cup milk. Blend until thick and just pourable. Repeat for each flavor, rinsing blender in between.
- 3. Layer the Shake: Begin by pouring the chocolate shake into the glass, followed by the strawberry, and finally the vanilla. To create the iconic swirl, use a long skewer or spoon to gently marble the layers.
- 4. Garnish: Top with whipped cream and, optionally, a drizzle of chocolate syrup or sprinkles for extra flair.
- 5. Serve Immediately: Your Neapolitan milkshake is best enjoyed fresh!
What to serve with
Drinks
- Enjoy with cold sodas, lemonade, or iced coffee for a true diner experience.
- For adult gatherings, pair with a spiked chocolate malt or boozy strawberry shake.
Sides
- Pair with classic burgers or diner-style sandwiches for the ultimate meal—try our homemade burger recipes for a full In-N-Out copycat experience.
- Golden, crispy fries with a side of dipping sauce make the perfect salty contrast.
Treats
- Who says you can’t double up on dessert? Pair your shake with a fudge brownie or slice of cake from our cake ideas.
Variations
- Make it dairy-free with plant-based ice creams and almond milk.
- Add mix-ins like crushed cookies or candy to each layer for a fun twist.
- Swap one flavor for coffee or caramel ice cream to personalize your shake.
Ingredient Substitutes
- Chocolate Ice Cream
- Substitutes: Chocolate frozen yogurt, chocolate gelato, or dairy-free chocolate ice cream.
- Vanilla Ice Cream
- Substitutes: French vanilla, vanilla bean gelato, or oat-based vanilla ice cream.
- Strawberry Ice Cream
- Substitutes: Strawberry frozen yogurt, frozen strawberry dessert, or non-dairy strawberry ice cream.
- Whole Milk
- Substitutes: 2% milk, almond milk, oat milk, soy milk.
- Whipped Cream
- Substitutes: Coconut whipped cream, store-bought spray whipped topping, or cashew cream.
- Chocolate Syrup
- Substitutes: Melted chocolate chips, cocoa powder with honey, or store-bought fudge sauce.
- Sprinkles
- Substitutes: Chopped nuts, mini chocolate chips, or a dusting of cocoa powder.
Ingredients
1 cup chocolate ice cream
1 cup vanilla ice cream
1 cup strawberry ice cream
1 1/2 cups whole milk, divided
Whipped cream (for topping)
Chocolate syrup (optional, for garnish)
Sprinkles (optional)
Instructions
Scoop and slightly soften each flavor of ice cream.
Blend chocolate ice cream with 1/2 cup milk until smooth and thick. Pour into bottom third of glass.
Rinse blender. Blend strawberry ice cream with 1/2 cup milk. Pour atop chocolate layer.
Rinse blender. Blend vanilla ice cream with 1/2 cup milk. Gently pour over strawberry layer.
Use a skewer or spoon to swirl layers if desired.
Top with whipped cream and optional chocolate syrup or sprinkles.
Serve immediately with a straw and long spoon.
