Peanut Butter and Oat Smoothie

This Peanut Butter and Oat Smoothie is a hefty, non-alcoholic option for those seeking a substantial sip. It’s built like a breakfast replacement or a solid pick-me-up, packing a creamy, nutty punch with a subtle citrus lift. You’re making this for someone who wants convenience and calories in a glass, or a kid who thinks it’s a milkshake. It’s a straight-up, no-fuss blend.

Peanut Butter and Oat Smoothie

4.32 from 16 votes

Calories: 173kcal

Prep Time: 3

Total Time: 5

Instructions

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Add all of the ingredients to a blender.
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Blend on high until completely smooth and the texture is even.
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Pour into a chilled glass and serve immediately.

Estimated Nutrition:

Calories: 173kcal (9%)Carbohydrates: 19g (6%)Sugar: 18g (20%)

Smoothie

Where it came from

Smoothies are a relatively modern creation, gaining popularity in the mid-20th century as health food trends emerged. This particular combination of peanut butter, oats, and banana is a common home kitchen staple, often seen as a quick and nutritious breakfast or snack, rather than a bar offering.

This isn’t a cocktail in the traditional sense, but rather a nutrient-dense beverage. It sits in the family of breakfast or snack smoothies, similar to a Berry Smoothie or a Green Smoothie, differing by its focus on a creamy, nutty profile and the inclusion of oats for body.

You’d typically find this type of drink in a cafe, a health food establishment, or most commonly, made in a home kitchen. It’s less about a specific bar setting and more about a functional, satisfying drink for any time of day.

What it tastes like

The initial taste is a rich, creamy burst of peanut butter, quickly followed by the mellow sweetness of banana. Mid-palate, the orange juice cuts through with a bright, tangy note, preventing the drink from being overly heavy. The finish is smooth and substantial, with the subtle texture of oats adding to the overall body.

This is a strictly non-alcoholic drink. It contains no spirits, wine, or beer. Consider it on par with a glass of juice or a protein shake, designed for refreshment and sustenance without any buzz.

The technique

Building this drink is straightforward. Combine all ingredients in your blender, starting with the liquids, then softer ingredients, and finally the solids. Secure the lid, then blend on high speed until the mixture is completely smooth and uniform in texture. Once blended, pour it into a chilled glass and serve it immediately.

The most important technique here is ensuring a thorough blend. Keep the blender running until there are no visible chunks of banana or oats, and the texture is perfectly smooth. An under-blended smoothie will be gritty and unappealing, losing the creamy mouthfeel that makes this drink satisfying.

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Ingredient Spotlight

The bottles that make or break this drink.

Peanut Butter

Use: Creamy, natural peanut butter is the way to go here. Brands like Jif, Skippy, or a simple store brand will do the job. Look for unsweetened or lightly sweetened to control the overall sugar.
Skip: Crunchy peanut butter. The nuts will likely not blend completely smooth and will give you an inconsistent, gritty texture.
Why: Peanut butter is the dominant flavor and texture builder in this smoothie. It provides the richness, the nutty profile, and helps create a thick, satisfying body.

Banana

Use: A ripe banana will add natural sweetness and a creamy texture. Using a frozen banana will make the smoothie colder and thicker without needing ice.
Skip: An underripe banana. It can lend an astringent taste and won’t contribute the same sweetness or creamy consistency.
Why: Banana contributes natural sweetness, helps thicken the smoothie, and provides a smooth base that complements the peanut butter and oats.

Three Variations

Three real ways bartenders riff on this drink. Same idea, three different jackets.

Chocolate Peanut Butter

A classic flavor pairing: Add 1-2 tablespoons of unsweetened cocoa powder or a drizzle of chocolate syrup to the blender for a dessert-like twist.

Protein Boost

For an extra kick: Stir in a scoop of your preferred protein powder before blending. Vanilla or unflavored options work best to maintain the core taste.

Berry Oat Smoothie

Fruity and fresh: Replace the banana with 1/2 cup of mixed frozen berries (strawberries, blueberries, raspberries) for a tart, fruity alternative.

What if I don't have…

Quick substitutions for when the bottle shop is closed.

No Banana?

Substitute with half an avocado for creaminess, or 1/4 cup of apple sauce for sweetness and body. You might need to adjust other liquid amounts.

No Peanut Butter?

Almond butter or cashew butter are excellent alternatives, offering a similar creamy texture and nutty flavor profile.

No Orange Juice?

Apple juice provides a sweet, mild alternative. For a creamier, less tart drink, use milk (dairy or non-dairy) instead.

No Blender?

A powerful food processor might work, but it will be challenging to achieve a perfectly smooth consistency. This drink requires a blender.

Frequently Asked Questions

Direct answers to what people search for after Googling this drink.

What is in a Peanut Butter and Oat Smoothie?

A Peanut Butter and Oat Smoothie typically contains banana, peanut butter, orange juice, quick oats, and frozen fruit or ice for consistency.

Can I use rolled oats instead of quick oats?

While quick oats blend more smoothly, you can use rolled oats. Just be aware that the texture might be slightly coarser, and you may need to blend for a longer duration.

How can I make this smoothie thicker?

To achieve a thicker smoothie, use a frozen banana, add more frozen fruit (like strawberries), or reduce the amount of orange juice slightly.

Is this smoothie good for breakfast?

Yes, this smoothie is an excellent choice for breakfast. It’s packed with protein, fiber, and healthy fats, providing sustained energy.

Can I make this smoothie vegan?

Yes, this recipe is naturally vegan as written. Ensure your peanut butter does not contain any animal products, which is rare but worth checking.

How long does this smoothie last?

Smoothies are best enjoyed immediately after blending. If you must store it, keep it in an airtight container in the refrigerator for no more than 24 hours. It may separate or lose some texture.

Can I add ice to this smoothie?

Yes, if you’re not using frozen fruit, adding a handful of ice cubes will help chill and thicken the smoothie to your desired consistency.

What’s the best way to clean my blender after making this?

For easy cleanup, immediately after pouring, add a little warm water and a drop of dish soap to the blender and blend for a few seconds. Then rinse thoroughly.

From the Drink Lab catalogue

Drink Lab has been collecting cocktail recipes since 2013. Some we wrote ourselves, plenty came in from readers, and the rest got passed across a bar somewhere along the way.

Last updated May 8, 2026 · 1 min read