Slushable
RecipesCalculatorsFix my slushNew
  • All recipesEvery recipe balanced to freeze
  • Milkshakes & frappésPresets, ingredients and café-style drinks
  • MargaritasClassic, strawberry, mango, and daiquiris
  • AlcoholicFrozen cocktails within hopper limits
  • Non-alcoholicZero-proof crowd-pleasers
Recipe generatorTurn any drink link into a slush recipeNinja SLUSHi recipesCurated for every SLUSHi model
  • Slush ratio calculatorSugar, alcohol, and water for any batch
  • Sugar to BrixGrams per litre to Brix, and back
  • Batch scalingScale a recipe to your fill line
  • Alcohol slush guideHopper ABV, ratios, and what freezes
Ninja SLUSHi calculatorSugar and freeze point by modelAll calculatorsEvery Slushable tool in one place
Download on the App Store
Slushable

Dialed-in ratios for any machine. Build recipes, fix watery slush, and keep every batch at the right Brix.

Slush science for humans

Calculators & Tools

  • Slush Ratio Calculator
  • Ninja SLUSHi Calculator
  • Brix to Sugar Converter
  • Sugar to Brix Calculator
  • Alcohol Adjustment Guide
  • Batch Scaling Tool

Guides & Troubleshooting

  • How the Slushometer Works
  • Watery Slush Fixes
  • Ninja SLUSHi Light Decoder
  • Machine Setup Checklist
  • Home vs. Commercial Tips
  • Ingredient Prep & Storage

Recipes & Flavors

  • All Slush Recipes
  • Recipe Generator
  • Ninja SLUSHi Recipes
  • Milkshakes & Frappés
  • Party-Ready Batch Ideas
  • Low-Alcohol Slushies
  • Kids & Family Recipes
  • Seasonal Flavor Guide

© 2026 Slushable is a Really Nice product.

Slushable and Slushometer are marks of Really Nice. App, calculator, recipe, and site content © 2026 Really Nice.

Official AppBlogPrivacyTermsFix SlushSupport
  1. Home
  2. /Recipes
  3. /Peanut Butter Banana Oat Smoothie
BananaNon-alcoholicPro

Peanut Butter Banana Oat Smoothie

A creamy peanut butter banana smoothie with oat milk, rolled oats, and warming cinnamon for an icy breakfast-style pour.

Peanut butter banana oat smoothie with a creamy golden color in a glass
Serves
8Serves(1920 ml)
Total
1 hrTotal
In the machine
45 minIn the machine
Brix
14.49°Brix
(12 ratings)
4.7(12 ratings)

Ingredients

Serves 8
  • Oat Milk810 ml
  • Banana PuréePrep first — see below480 ml
  • Peanut Butter80 ml
  • Rolled Oats60 ml
  • Cinnamon10 ml
  • Allspice10 ml
  • Water240 ml
  • Simple Syrup 2:1230 ml

Prep first

Make these preparations before you start the machine.

Purée

Banana Purée

You need 475 ml for this batch

Makes 475 ml

You'll need

  • ripe bananas, peeled and chopped4

Steps

  1. 1Peel and chop the bananas.
  2. 2Blend the chopped bananas until completely smooth.
  3. 3Measure 475 ml of banana purée for the recipe.

Method

  1. 1

    Blend the base

    Combine the oat milk, banana purée, peanut butter, rolled oats, cinnamon, allspice, water, and simple syrup in a blender. Blend until the oats and peanut butter are fully incorporated and the mixture looks smooth.

  2. 2

    Chill the mixture

    Transfer the blended mixture to a covered container and chill until cold, especially if any ingredients started at room temperature.

  3. 3

    Add to the machine

    Pour the cold smoothie base into the slush machine, leaving room for movement according to your machine’s fill line.

  4. 4

    Freeze and serve

    Run the machine until the smoothie is thick, icy, and pourable, about 45 minutes. Pour into chilled glasses and serve right away.

Tips

  • Chill the oat milk and banana purée before mixing to help the batch freeze evenly and taste extra creamy.
  • Whisk or blend the peanut butter thoroughly with some oat milk first so it disperses smoothly through the mixture.
  • Stir the mixture before adding it to the machine, as oats and banana can settle during holding.
  • Serve soon after churning for the creamiest texture, or keep the machine running if guests are coming back for seconds.

Rate this slush

Made this batch? Tell other slush makers how much you loved it.

4.7· 92% of 12 slush makers loved it

Peanut butter banana oat smoothie with a creamy golden color in a glass
Save to app
QR code to open Slushable on the App Store

Scan to open Slushable — scale the batch and time the freeze.

Get the free app

Testing status

Tried & tested

These recipes have all been tested in our machines and consistently turn out smooth, delicious, and ready to serve.

Generated and rebalanced from bbcgoodfood.com. Amounts retuned for a home slush machine.

Your turn

Now mix yours

This one started as a link — drop in yours and the slush calculator rebalances it until it actually freezes in your machine.

Paste a link to any drink recipe…Make it slushable

Free · No sign-up · Yours gets its own shareable page

Coming back? Keep the generator one tap away —Ctrl+D

Browse more recipes

Ready to make it slushable?

Get the iPhone app, balance the batch in minutes, and stop guessing at sugar, booze, and dilution.

Perfect my first batch

Free on the App Store — the official app by Really Nice.

More slush to try

Pink Grapefruit Margarita Slush in a chilled glass with a rosy citrus color
GrapefruitLight

Pink Grapefruit Margarita Slush

A ruby red grapefruit margarita with blanco tequila, triple sec, and lime, served icy and tart-sweet for sunny patio pours.

14.41° Brix55 minView
Greyhound Slush with pink grapefruit vodka mixture in a chilled glass
GrapefruitLight

Greyhound Slush

A tart Greyhound with vodka, grapefruit juice, and a silky icy texture for sunny happy hour.

14.49° Brix50 minView
Mai Tai Slush in a glass with a golden-orange icy texture
OrgeatLight

Mai Tai Slush

A tiki-style Mai Tai with white and dark rum, lime juice, orange curaçao, and nutty orgeat in an icy, pourable texture for warm-weather parties.

14.34° Brix55 minView
Espresso Martini Slush with a dark coffee-colored icy texture in a chilled glass
CoffeeVerification status: Tried & tested

Espresso Martini Slush

An after-dinner espresso martini with Grey Goose vodka, black coffee, and Kahlúa in a silky, icy pour for dessert-hour sipping.

14.62° Brix55 minView
Bourbon Walnut Old Fashioned Slush in a rocks glass with a deep amber color
BourbonVerification status: Tried & tested

Bourbon Walnut Old Fashioned Slush

A rich Old Fashioned with Buffalo Trace bourbon, aromatic bitters, black walnut bitters, and a silky iced texture for fireside sipping.

14.75° Brix55 minView
Rosy Sarti Spritz Slush served icy in a glass
ProseccoVerification status: Tried & tested

Sarti Spritz Slush

A rosy Sarti Spritz with Prosecco, Sarti Rosa, and a silky, icy pour made for Italian aperitivo hour.

14.56° Brix50 minView