Peanut Butter Banana Smoothie

This is the easiest smoothie. It only has a handful of simple ingredients—banana, peanut butter, milk and a dash of cinnamon to make it special!

Simple peanut butter banana smoothie topped with sliced bananas and a bunch of bananas and a small container of peanut butter behind it.
Alison Bickel

A smoothie with just three ingredients? Milk, peanut butter, and banana—where do I sign up? Well, four if you count the dash of cinnamon. Still, where do I sign up?

I recently scanned the menu of a popular smoothie shop in my neighborhood, marveling over some of the unusual ingredients: Brown rice protein, adaptogenic mushroom mix, cold-pressed turmeric juice, and something called Blue Magik. 

I’m sure every single one is packed with promise, but sometimes a girl just wants what’s familiar (say a straight up Peanut Butter and Banana Smoothie this like one). It’s creamy, deliciously nutty, and just so simple. 

The recipe is built on 3 little ingredients you likely have in your pantry right now. And if you don’t, you can march yourself to any supermarket or corner shop to get them. Milk, bananas, and peanut butter are the essentials. I also like to add a few dashes of cinnamon for good measure. 

Smoothie in a Snapshot

  • Terrific creamy texture 
  • Good for you!
  • Naturally sweet (no added sugar)
  • Super flexible recipe 
Simple peanut butter banana smoothie topped with sliced bananas and a bunch of bananas and a small container of peanut butter behind it.
Alison Bickel

A Healthy Smoothie

If you didn’t know what went into this smoothie, you might think it’s more decadent and less nutritious than it is. That’s because it’s so darn creamy and peanut buttery. But good for you it is.

Each serving delivers plenty of protein (particularly if you use cow’s milk or a protein-rich plant milk, such as soy or pea milk), calcium, potassium, fiber, and vitamin E. 

The mash up of protein and healthy fats also makes it quite satisfying so you stay full longer.

Freeze Your Bananas First

Making this smoothie with a frozen banana is key. The banana lends natural sweetness, and when frozen, does wonders for the texture. 

Let your banana get good and ripe—mottled with black spots. Peel it, slice it and store in a resealable bag or covered container. Freeze overnight. When it’s smoothie time, add it to the blender. Bananas will keep well for several months in the freezer when properly sealed. 

That’s just one pro tip for making the best smoothie possible! Here are a few more tips and tricks for making better smoothies. 

Simple peanut butter banana smoothie topped with sliced bananas and a bunch of bananas and a small container of peanut butter behind it.
Alison Bickel

Make It Your Own

The recipe below is the basics of a creamy peanut butter banana smoothie, but feel free to make a few adjustments to make it your own. Here are a few suggestions:

  • Add a few teaspoons of cocoa powder for a hit of chocolatey flavor
  • Swap any other nut or seed butter for peanut butter
  • Add 1/2 teaspoon vanilla extract
  • Add a few tablespoons of plain yogurt for a tangy flavor
  • Toss in several fresh or frozen strawberries
  • Include a small handful of baby spinach for an under-the-radar boost of greens
  • Top the smoothie with a few teaspoons of cacao nibs or mini chocolate chips
  • Add 3 tablespoons nonfat dried milk powder for added protein and calcium
  • Add a few ounces silken tofu for extra creaminess, fiber and protein.  

More Simple Smoothie Recipes:

BEST peanut butter banana smoothie in a cup set on a plate on a cutting board.
Alison Bickel

Peanut Butter Banana Smoothie

Prep Time 5 mins
Total Time 5 mins
Serving 1 serving
Yield 1 (13 ounce) smoothie


  • 1 cup whole milk

  • 1 medium ripe banana, cut into chunks and frozen

  • 2 tablespoons unsweetened peanut butter

  • A few dashes cinnamon

  • 2 ice cubes


  1. Blend smoothie and serve:

    Add 1 cup whole milk, banana, peanut butter, cinnamon, and ice to a blender carafe. Start the blender on low and gradually increase to high. 

    Stop and scrape down the sides of the blender as needed. If the smoothie is too thick add additional milk, one tablespoon at a time, to reach desired consistency. 

    Blend until the smoothie is frothy and smooth with ice completely blended. Serve. 

Nutrition Facts (per serving)
455 Calories
25g Fat
46g Carbs
17g Protein
Show Full Nutrition Label Hide Full Nutrition Label
Nutrition Facts
Servings: 1
Amount per serving
Calories 455
% Daily Value*
Total Fat 25g 32%
Saturated Fat 7g 37%
Cholesterol 24mg 8%
Sodium 227mg 10%
Total Carbohydrate 46g 17%
Dietary Fiber 6g 22%
Total Sugars 28g
Protein 17g
Vitamin C 10mg 51%
Calcium 310mg 24%
Iron 1mg 5%
Potassium 963mg 20%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Nutrition information is calculated using an ingredient database and should be considered an estimate. In cases where multiple ingredient alternatives are given, the first listed is calculated for nutrition. Garnishes and optional ingredients are not included.