Quick 5-Ingredient Peanut Butter Smoothie

This peanut butter smoothie is the answer when you want something creamy, filling, and ready in five minutes. It blends frozen banana, peanut butter, and milk into a thick drink that tastes like a milkshake.

It uses just a handful of pantry staples. The banana brings natural sweetness, the peanut butter adds richness and protein, and you can tweak it endlessly depending on what you are craving.

What Makes This Smoothie So Good

This is the smoothie I keep coming back to because it tastes like a treat but keeps me full until lunch. The frozen banana gives it a milkshake-thick texture without ice watering everything down.

I love that it requires zero planning. As long as I have bananas in the freezer and a jar of peanut butter, I am five minutes from something creamy and satisfying.

Ingredients

• 1 medium frozen banana: peel, slice, and freeze ahead for the creamiest texture.
• 2 tbsp smooth peanut butter: natural peanut butter (just peanuts and salt) works well here.
• 1 cup milk: dairy or unsweetened almond, oat, or soy milk all work.
• 1 tsp honey or maple syrup: optional, taste first—the banana may be sweet enough.
• 1/2 tsp vanilla extract: optional, but adds a hint of warmth.
• Pinch of salt: brings out the peanut butter flavor.

Variations and Substitutions

• Make it chocolate: add 1 tbsp cocoa powder for a chocolate peanut butter smoothie.
• Use almond butter: swap in almond butter for a different nutty flavor.
• Add spinach: a handful of fresh spinach blends in without changing the taste much.
• Protein boost: add a scoop of vanilla or chocolate protein powder.
• If you enjoy this, try my Strawberry Banana Smoothie for another quick blended drink.

How to Make a Peanut Butter Smoothie

Step 1: Load the Blender

Pour the 1 cup milk into the blender first, then add the frozen banana, 2 tablespoons peanut butter, 1 teaspoon honey or maple syrup if using, 1/2 teaspoon vanilla, and a pinch of salt. Putting the liquid in first helps everything blend more easily.

Step 2: Blend Until Smooth

Start the blender on low, then increase to high speed. Blend for about 30 to 45 seconds, until the smoothie is completely smooth and no chunks of banana remain. Stop and scrape down the sides if needed. If it is too thick, add a splash more milk.

Step 3: Pour and Enjoy

Pour the smoothie into a glass and drink right away. For a little extra, top with a sprinkle of granola, a drizzle of peanut butter, or a few banana slices.

Tips for the Best Peanut Butter Smoothie

• Use a banana that is fully ripe with brown spots for the sweetest flavor. If your banana is underripe, add a bit more sweetener.
• For an extra-thick, frosty texture, add a handful of ice cubes after blending or use a banana that has been frozen solid.
• Natural peanut butter can separate; stir it well before measuring so you get oil and solids in every spoonful.
• Do not over-blend. Blending too long can warm the smoothie and thin it out. Stop as soon as it looks creamy.

Scale it up easily:

Frequently Asked Questions

Can I make this smoothie without banana?

Yes, but the texture will be thinner. Replace the banana with 1/2 cup of Greek yogurt and a handful of ice, then add a little more sweetener.

Can I use crunchy peanut butter?

You can. The smoothie will have small peanut pieces and a slightly grainy texture, which some people enjoy.

Is this smoothie vegan?

It is if you use plant-based milk and maple syrup instead of honey.

Can I prep it ahead of time?

This smoothie is best right after blending, but you can store it in the fridge for up to 24 hours. Shake or stir well before drinking; it will separate.

Peanut Butter Smoothie Recipe

Print Recipe Pin Recipe

Prep Time 5 minutes mins

Total Time 5 minutes mins

Servings: 1 servings

Calories: 430

Ingredients Method Notes

Ingredients

  

• 1 medium frozen banana
• 2 tbsp smooth peanut butter
• 1 cup milk
• 1 tsp honey or maple syrup (optional)
• 1/2 tsp vanilla extract
• Pinch of salt

Method

 

1. Pour milk into blender. Add frozen banana, peanut butter, honey, vanilla, and salt.
2. Blend on low, then high, for 30–45 seconds until smooth. Scrape sides if needed.
3. Pour into a glass and serve immediately.

Notes

If the smoothie is too thick, add more milk a tablespoon at a time until it reaches your preferred consistency. For a colder drink, use extra-frozen banana or a few ice cubes.