Ninja Slushi Peanut Butter Milkshake Recipe
Milkshakes are one of the easiest sweet drinks to make at home. My Ninja Slushi Peanut Butter Milkshake Recipe is thick, creamy, and full of rich peanut butter flavor.
It feels like a treat from an ice cream shop, but I can make it right in my kitchen.
The Ninja Slushi machine is great for milkshakes because it freezes and mixes at the same time. It helps create a smooth drink with no hard ice bits.
I love how simple it is to use. I pour in my mix, press a button, and let the machine do the work.
Peanut butter milkshake has been a favorite for many years. The nutty flavor mixed with sweet cream is hard to beat.
This recipe is extra creamy, thick, and very easy to follow. It is perfect for beginners, busy parents, dessert lovers, and anyone who loves peanut butter.

Why You’ll Love This Ninja Slushi Peanut Butter Milkshake
1. Ultra-creamy texture without ice chunks: The Ninja Slushi machine freezes and mixes at the same time. This creates a smooth drink with no hard ice bits. Every sip feels soft and creamy. You do not need to worry about icy clumps ruining the texture.
2. Quick 5-minute preparation: You only need five minutes to mix everything. Pour the items into a pitcher, whisk them together, and add to the machine. The machine does the rest. You can do other things while it works. This makes it a great option for busy days.
3. Customizable sweetness and thickness: You control how sweet your drink is. Add more or less condensed milk based on your taste. You can also adjust the thickness by changing the amount of milk. This lets you create the perfect drink for you.
4. Kid-friendly and party-perfect treat: Kids love the creamy peanut butter taste. Parents love how easy it is to make. This drink works well for parties and gatherings. You can make a large batch and serve it to guests. Everyone will enjoy it.
5. Budget-friendly compared to café milkshakes: Buying milkshakes at a café can be expensive. This recipe costs less and makes more. You get the same creamy texture and rich taste without paying high prices. You can enjoy it anytime at home.
What Makes the Ninja Slushi Perfect for Milkshakes?
The Ninja Slushi machine is built to freeze liquid while mixing it at the same time. This creates a smooth frozen drink without large ice pieces.
Regular blenders only crush ice. They do not freeze while mixing. That is why blender milkshakes can turn thin or watery.
The machine has different settings. Slushie mode is for icy drinks with a light texture. Milkshake mode is slower and creamier. It keeps dairy drinks thick and smooth.
Another great thing is that the Ninja Slushi helps prevent separation. Some milkshakes turn watery at the bottom after sitting.
This machine keeps the drink blended and evenly frozen. Compared to a regular blender milkshake, the texture feels richer and more stable from the first sip to the last.
Ninja Slushi Peanut Butter Milkshake Ingredients
- Milk – 6 Cups: Milk builds the base of this drink. It gives a smooth and creamy texture. Whole milk makes the shake thick and rich. Low-fat milk can also work, but the drink may feel lighter. Non-dairy milk like almond or oat milk can replace dairy milk. Choose plain and unsweetened types for best results.
- Sweetened Condensed Milk – 14 oz: Sweetened condensed milk adds sweetness and thickness. It blends well and helps create a smooth texture. It also gives a deep creamy flavor. For less sweetness, use a smaller amount. There is no perfect swap, but a mix of heavy cream and sugar can be used in small batches.
- Whipped Topping – 4 oz: Whipped topping makes the milkshake fluffy and light. It adds air and softness. Store-bought whipped topping works well. Fresh whipped cream can replace it. Make sure it is soft and not frozen solid before mixing.
- Melted Peanut Butter – 1 Cup: Melted peanut butter gives bold peanut flavor. Smooth peanut butter blends best. Heat it gently until soft and pourable. Crunchy peanut butter can be used for a slight texture. Almond butter can replace peanut butter for a nut-free option.

Essential Kitchen Equipment
- Ninja Slushi Machine – freezes and mixes drink
- Large Pitcher – holds liquid mix
- Whisk – blends ingredients smooth
- Measuring Cups – accurate liquid measure
- Spatula – scrape peanut butter
- Serving Cups – ready for drink
How To Make Ninja Slushi Peanut Butter Milkshake
Step 1 | Prepare the Machine
Place the Ninja Slushi machine on a flat counter. Make sure it has been upright for at least two hours before use. Check that all parts are clean and dry.
Install the condensation catch under the evaporator. Slide it into place. Insert the auger and twist gently until it locks in. Slide the vessel into position and secure it with the handle. Place the drip tray in front.
Step 2 | Turn On the Machine
Plug in the unit. Press the power button. The lights will turn on. Keep the lid closed until ready to add liquid.

Step 3 | Mix the Ingredients
Pour 6 cups of milk into a large pitcher. Add 14 ounces of sweetened condensed milk. Add 4 ounces of whipped topping. Pour in 1 cup of melted peanut butter.
Whisk slowly at first. Then whisk faster until the mixture looks smooth and creamy. Make sure no thick peanut butter clumps remain.

Step 4 | Add Mixture to Machine
Open the top cover of the vessel. Pour the liquid mixture through the easy-fill opening. Close the lid tightly.

Step 5 | Select Preset
Press the Milkshake preset button. This preset is made for creamy dairy drinks. The machine will start freezing and mixing. Lights may blink while the drink cools. The process can take 30 to 35 minutes depending on the starting temperature.

Step 6 | Wait for Texture
When the drink reaches the right thickness, the lights will stop blinking and stay solid. The machine may beep. It will keep the drink cold and ready to serve.

Step 7 | Serve
Place a cup under the handle. Pull the handle forward to pour. Release to stop. Add extra whipped topping or drizzle of peanut butter for decoration.

Pro Tips for the Best Results
These tips come from making this shake many times. They help you get perfect results every time.
- Chill Your Ingredients First: Cold ingredients freeze faster. Put your milk and sweetened condensed milk in the fridge overnight. Cold starts mean quicker results.
- Don’t Skip Melting the Peanut Butter: Melted peanut butter mixes in completely. Cold peanut butter leaves stringy bits throughout your shake. Warm it up for that smooth texture.
- Use Room Temperature Whipped Topping: Take the whipped topping out of the freezer while you gather other things. Soft topping blends better than frozen chunks.
- Let the Machine Rest Between Batches: If making multiple batches, give the machine 10 minutes to rest. This keeps the freezing power strong for the next round.
- Scrape Down the Sides: Sometimes ingredients stick near the top. Use a spatula to push them down into the frozen mix. This helps everything blend evenly.
- Don’t Overfill the Vessel: Leave some space at the top. Liquid expands as it freezes. Too much mixture can overflow and make a mess.
Serving Suggestions
This milkshake is great in many ways. It tastes amazing on its own, but small extras can make it even better.
Serve it in tall clear glasses so the creamy color shows. Add a swirl of whipped cream and a drizzle of chocolate syrup on top. Chopped peanuts add crunch. Mini chocolate chips also work well.
For parties, pour into smaller cups for kids. Add colorful straws for enjoy. This drink also pairs well with simple snacks like cookies, brownies, or peanut butter sandwiches.
On hot summer days, serve it outside with grilled food. During movie night, enjoy it with popcorn. The Ninja Slushi Peanut Butter Milkshake Recipe fits many events and makes any day feel special.
Make-Ahead and Storage
This milkshake tastes best right after serving. The texture is thick and creamy at that time. For short storage, keep the milkshake inside the Ninja Slushi machine on cool mode. It will stay ready for a while.
For fridge storage, pour leftovers into a sealed container. Keep in the fridge for up to one day. Stir well before serving because slight settling can happen.
For freezer storage, place in an airtight container. Freeze up to one week. Let it soften a bit before stirring and serving again. Texture may change slightly after freezing.
Ninja Slushi Peanut Butter Milkshake Recipe FAQs
1. Why is the milkshake not thick enough?
Thin texture can happen when too much milk is added. It can also happen when the mixture was warm before pouring into the machine. Use cold ingredients for better results. Less milk will give a thicker drink. The milkshake preset should always be used for creamy texture.
2. Can crunchy peanut butter be used?
Yes, crunchy peanut butter can be used. It will give small peanut bits in each sip. This adds texture and more nut flavor. Smooth peanut butter blends more evenly. Both options taste great, so it depends on personal choice.
3. How long does the machine take to finish?
The Ninja Slushi machine usually takes about 30 to 35 minutes. The time can change based on how cold the mixture was before starting. Colder liquid may freeze faster. The lights will stop blinking when the milkshake is ready.
4. Can extra flavors be added?
Yes, many flavors can be added. Chocolate syrup blends well with peanut butter. Banana slices can be mixed into the liquid before pouring. A spoon of cocoa powder can create a chocolate peanut butter shake. Small changes can create many fun versions of this drink.
5. Is this recipe good for kids?
Yes, this milkshake is very kid-friendly. The sweet peanut butter flavor is popular with children. It works well for birthday parties and family nights. For kids with peanut allergies, almond butter or sunflower butter can replace peanut butter.
6. Can I add alcohol for adults?
Add rum or bourbon splash to mix. Peanut butter pairs with whiskey too. Pour before freeze. Keeps thick post-chill. Ninja Slushi Peanut Butter Milkshake Recipe turns boozy treat. Taste small first, booze strongens cold. Non-alcoholic stays kid safe. Fun twist evenings.
Ninja Slushi Peanut Butter Milkshake Recipe
Ninja Slushi Peanut Butter Milkshake made in 45 minutes with 10 minutes prep and 35 minutes freeze time. Thick, creamy, and perfect for 6 servings.
Ingredients
- 6 cups whole milk
- 14 oz sweetened condensed milk
- 4 oz whipped topping (softened)
- 1 cup smooth peanut butter, melted
Instructions
- Place the Ninja Slushi machine on a flat surface. Ensure it has stood upright for at least 2 hours. Confirm all parts are clean and dry. Install the condensation catch under the evaporator. Insert and lock the auger into place. Slide the vessel in and secure with the handle. Attach the drip tray.
- Plug in the machine and press the power button. Keep the lid closed until ready to add the mixture.
- In a large pitcher, pour 6 cups of milk. Add 14 oz sweetened condensed milk. Add 4 oz whipped topping. Pour in 1 cup melted peanut butter. Whisk slowly, then increase speed until smooth and fully combined with no clumps.
- Open the vessel lid. Pour the mixture through the easy-fill opening. Close the lid securely.
- Press the Milkshake preset button. The machine will freeze and mix the drink for about 30–35 minutes depending on starting temperature.
- When the lights stop blinking and remain solid, the milkshake has reached the proper thickness. The machine may beep and will keep the drink chilled.
- Place a cup under the spout. Pull the handle to dispense. Release to stop. Garnish with whipped topping or a drizzle of peanut butter if desired.
Nutrition Information:
Serving Size: 1Amount Per Serving: Calories: 585Total Fat: 32gSaturated Fat: 14gCholesterol: 55mgSodium: 260mgCarbohydrates: 59gFiber: 2gSugar: 53gProtein: 17g
The Ninja Slushi Peanut Butter Milkshake Recipe is creamy, rich, and easy to prepare at home. The Ninja Slushi machine creates smooth texture without ice chunks.
This recipe saves money and tastes amazing. Try new flavors like chocolate or banana for fun twists.
Share photos or leave a comment with your own version. I would love to see your creations.
