Ninja Slushi Cookies and Cream Milkshake Recipe

Cookies and cream milkshakes are a favorite treat for many people, but making them in a Ninja Slushi works differently than using a regular blender.

The machine freezes and churns the mixture at the same time, creating a thick, creamy texture without needing ice that can dilute the flavor.

When I started working on this Ninja Slushi Cookies and Cream Milkshake Recipe, a few changes were made to match how the machine works.

Instead of blending crushed cookies directly into the drink, the cookies were soaked in milk first and then strained. This gave the milk a deep cookies-and-cream flavor while helping the machine run smoothly.

Now the results come out consistent every time. This Ninja Slushi Cookies and Cream Milkshake Recipe is simple to follow and makes a smooth, cold, and creamy treat.

Why You’ll Love This Ninja Slushi Cookies and Cream Milkshake

The Ninja SLUSHi is designed to create frozen drinks with a smooth texture. Here are some reasons why you’ll love this cookies and cream milkshake:

• Uses Simple Ingredients – Milk, cookies, cream, vanilla, and maple syrup combine into an easy, smooth frozen drink with minimal prep.
• Faster Than Traditional Homemade Shakes – The machine manages the freezing process, reducing hands-on effort compared to standard blended milkshakes.
• Customizable Flavors and Toppings – Different cookies, syrups, and toppings can be added to create new flavor combinations while keeping a smooth base.
• Repeatable Results Every Time You Make It – The same process delivers steady results each time with accurate measurements and machine control.

Ingredients for Cookies and Cream Milkshake in the Ninja Slushi

• Oreos or Choice of Cookie – 10 to 12 Cookies – Classic Oreos create a rich chocolate cookie flavor that blends beautifully into the milk. Double Stuf Oreos can be used for a slightly richer result. Other sandwich cookies, chocolate wafers, or even graham crackers work well when a different flavor profile is preferred.
• Whole Milk – 1 Cup – Whole milk forms the base of this milkshake and carries the cookie flavor throughout the mixture. For a lighter option, 2% milk can be used. Oat milk works well for a dairy-free version, while full-fat coconut milk creates a thicker and richer consistency.
• Heavy Cream – 1/2 Cup – Heavy cream gives the milkshake its thick, creamy body and helps create the smooth frozen texture that works so well in the Ninja Slushi. Half-and-half can be used for a lighter drink. Full-fat coconut cream is a good dairy-free substitute that still provides a creamy texture.
• Vanilla Extract – 1 Teaspoon – Vanilla extract enhances the cookies and cream flavor and helps bring all the ingredients together. Vanilla bean paste or vanilla bean powder can be used instead. Since both options have a stronger flavor, a smaller amount is usually enough.
• Maple Syrup – 2 Tablespoons – Maple syrup adds sweetness while also helping the mixture reach the sugar level needed for proper Ninja Slushi performance. Honey, agave nectar, or simple syrup can be used as substitutes. Granulated sugar is less ideal because it may not dissolve completely.
• Whipped Cream – As Needed for Topping – Whipped cream adds a light and creamy finish that pairs perfectly with the thick milkshake base. Store-bought whipped cream is quick and convenient, while homemade whipped cream offers a richer flavor. For a dairy-free option, whipped coconut cream works very well.
• Cookie Crumbles – 2 to 3 Crushed Cookies for Topping – Cookie crumbles add texture, crunch, and extra cookies and cream flavor to the finished milkshake. Chocolate shavings, mini chocolate chips, or a drizzle of chocolate syrup can also be used for additional texture and decoration.

Must Needed Kitchen Tools

1. Ninja Slushi Machine: Core appliance for this recipe.
2. Medium Bowl: Used for soaking cookies in milk.
3. Fine Mesh Strainer or Cheesecloth: Used to strain out cookie solids.
4. Measuring Cup (1-cup): Used for accurate liquid measurement.
5. Measuring Spoons: Used for vanilla and maple syrup.
6. Spoon or Small Whisk: Used to stir maple syrup smoothly.
7. Serving Glass: Tall glass preferred for serving.
8. Zip-Lock Bag and Rolling Pin: Used to crush cookie topping.

How to Make a Cookies and Cream Milkshake in the Ninja Slushi (Step-by-Step)

Step 1 | Soak the Cookies in Milk

Place 10 to 12 Oreo cookies in a medium bowl. Pour 1 cup of whole milk over the cookies. Let them soak for 5 to 10 minutes.

As the cookies soften, their flavor moves into the milk. The milk should turn a light tan color and develop a rich cookies and cream aroma.

Step 2 | Strain the Cookie – Infused Milk

Set a fine mesh strainer over a clean bowl or large measuring cup. Pour the soaked cookie mixture through the strainer.

Use the back of a spoon to gently press the softened cookies and release any remaining flavored milk.

Step 3 | Fill the Ninja Slushi Vessel

Pour the cookie-infused milk into the Ninja Slushi vessel. Add 1/2 cup of heavy cream and 1 teaspoon of vanilla extract.

Check that the liquid level stays below the maximum fill line. Secure the vessel properly before starting the machine.

Step 4 | Start the Milkshake Program

Turn on the Ninja Slushi and select the Milkshake setting. Start the program and allow the machine to run. The machine will freeze and churn the mixture automatically.

The process usually takes about 20 to 30 minutes. When finished, the mixture should look thick, smooth, and creamy.

Step 5 | Add Maple Syrup if Needed

During processing, the machine may indicate that the sugar level is too low. This can happen when the mixture contains less than the recommended amount of sugar.

Add 2 tablespoons of maple syrup to the vessel and stir carefully with a long spoon.

Continue the cycle until the syrup is fully blended and the milkshake reaches the proper consistency.

Step 6 | Dispense and Add Toppings Before Serving

Place a tall serving glass under the dispenser. Fill the glass with the finished milkshake.

Add your favorite toppings, then serve immediately while the texture is cold, thick, and creamy.

Pro Tips for the Perfect Cookies and Cream Milkshake

• Chill Serving Glasses: Place serving glasses in the freezer for a short time before use. Cold glasses help the milkshake stay thick longer after dispensing and slow down melting.
• Use Very Cold Ingredients: Keep milk and heavy cream chilled before use. Cold liquids help the machine freeze faster and improve overall creamy texture.
• Do Not Overfill the Vessel: Stay below the max fill line. Too much liquid can slow freezing and may lead to uneven or icy results.

Best Toppings for a Cookies and Cream Milkshake

A great topping can add extra flavor, texture, and visual appeal to your milkshake. I like to mix and match toppings based on what I have at home.

• Cookie Crumbles – A sprinkle of crushed cookies adds a crunchy texture and boosts the cookies-and-cream taste in every sip.
• Chocolate Syrup – A drizzle of chocolate syrup over the top adds sweetness and gives a classic milkshake finish.
• Mini Chocolate Chips – Mini chocolate chips bring small bursts of chocolate without overpowering the drink.
• Crushed Chocolate Sandwich Cookies – Extra cookie pieces on top deepen the cookie flavor and add more crunch.
• White Chocolate Shavings – White chocolate adds smooth sweetness that blends well with the cookie base.
• Caramel Drizzle – A light caramel drizzle gives a sweet contrast that pairs nicely with the chocolate cookies.
• Chocolate Cookie Sticks – Cookie sticks add a fun finishing touch and also work as a snack alongside the milkshake.

What to Serve With a Cookies and Cream Milkshake

I like pairing this milkshake with simple foods that balance its thick and creamy texture.

Fresh cookies are always a good choice because they match the cookies-and-cream flavor. Brownies work well too, especially when served slightly warm beside the cold milkshake.

For a sweet-and-savory combination, I often serve it with burgers. The creamy drink pairs nicely with a juicy burger and creates a classic diner-style meal.

French fries are another favorite option. The salty fries contrast with the sweet milkshake and create a combination many people love.

You can mix and match these options based on what you are serving that day.

Make-Ahead Ingredient Prep

A little preparation can help the recipe come together more smoothly.

I like to measure the milk, heavy cream, vanilla extract, and maple syrup before starting. The cookies can be counted and placed in a bowl ahead of time as well.

For the best flavor, the cookie soaking step can be planned in advance so the milk has enough time to absorb the cookie taste fully.

Keeping all ingredients cold before starting also helps the machine work efficiently.

Store Leftover Milkshake

Leftover milkshake can be stored in the Ninja Slushi vessel or in an airtight container in the refrigerator for up to 48 hours. The texture will become thinner as it sits, but the flavor will remain rich and creamy.

When ready to serve again, pour the mixture back into the Ninja Slushi and run the appropriate setting until the milkshake becomes thick and frozen.

For a frozen leftover milkshake, allow it to soften slightly, then re-blend or re-slush until smooth.

This helps bring back the creamy texture and makes the milkshake easier to dispense and serve.

How to Clean the Ninja Slushi After Making a Milkshake

Make sure the unit is fully cleaned after each use and before storing. Keep the unit running for easy dispensing.

Stop the current program. Press the rinse button. Pour water into the vessel and dispense to clear any remaining frozen drink.

Add water until the evaporator is covered. Add one to two drops of soap. Wait 1 minute.

Slowly dispense the water. Stop the rinse program. Press power to turn off. Unlock the bail handle and remove the vessel.

Slide the augur off the evaporator. Wipe down the evaporator. Slide out the condensation catch.

All parts except the motor base and evaporator are dishwasher safe (no heated dry cycle). Wipe the motor base with a damp cloth. Dry all parts fully.

Ninja Slushi Cookies and Cream Milkshake Recipe FAQs

1. Why does my shake taste watery?

Watery taste usually means you added too much milk or not enough heavy cream. Another reason is skipping the straining step. Cookie bits do not add flavor once strained.

Always use 1 cup milk and ½ cup cream. Do not add ice. Ice melts and waters down everything.

2. Why does the machine sometimes ask for more sugar?

The Ninja SLUSHi relies on a certain amount of sugar for proper freezing performance. Some dairy mixtures may not contain enough natural sugar to reach the recommended level.

Adding right amount sugar helps increase the sugar content and allows the machine to complete the cycle correctly while maintaining a smooth frozen texture.

3. Can I add extra flavorings?

Yes. Chocolate syrup, caramel sauce, peppermint extract, cookie butter, or flavored extracts can be added to create new versions of the recipe.

Small amounts are usually enough to change the flavor profile. It is best to avoid adding large amounts of extra liquid, which could affect the freezing process.

4. Why is my milkshake thinner than expected?

A thinner milkshake can result from warm ingredients, inaccurate measurements, or insufficient sugar content. Double-check ingredient amounts and ensure the machine completes its full cycle.

Using whole milk and heavy cream also contributes to a thicker texture. Small changes in ingredients can have a noticeable effect on the final result.

This Ninja Slushi Cookies and Cream Milkshake makes it easy to create café-style frozen drinks at home. The creamy texture and rich cookies and cream flavor come through in every sip.

It is simple to customize with different toppings, cookies, and sweet mix-ins.

Serve it with your favorite snacks or desserts for a complete treat that is both smooth and satisfying.