Sip on this creamy and refreshing 5-minute smoothie that’s easy to make in a blender with 6 ingredients. Peanut butter adds healthy fats, while oats and banana offer gut-friendly fiber.

Peanut butter oatmeal smoothie in a glass.

Recipe Highlights

A satisfying smoothie made of oat milk, date syrup, peanut butter, cinnamon, oats, and frozen banana.
Filling and healthy, this drink is delicious with breakfast. You can also enjoy it as a refreshing snack.
Make the smoothie in just 5 minutes in a blender at home.

RELATED: Peanut Butter Smoothie

Ingredient Notes

Ingredients for a peanut butter oatmeal smoothie.

Oat milk: Oat milk and bananas are a tasty pairing, but you can use any type of milk you’d like. For more protein, use soy milk or cow’s milk.
Date syrup: Date syrup is great for naturally sweetening smoothies. It’s made out of Medjool dates.
Peanut butter: Use a product without added salt and sugar to keep it healthy.
Ground cinnamon: The warming flavor of cinnamon works well with peanut butter and bananas.
Rolled oats: Use plain unflavored oats, not flavored oats in the packet. Raw oats can be used in smoothies. You don’t need to cook them first.
Frozen bananas: Be sure to freeze your bananas before using them in this smoothie. This will make the drink cold and thick.

For full ingredients and detailed instructions, please see the recipe card at the bottom of the post.

Variations

Seeds: To increase the nutty notes, add 1 or 2 tablespoons of seeds. Examples include flax seeds, chia seeds, and hemp seeds. These ingredients offer omega-3 fats and plant-based protein.

Protein powder: Enjoy this drink as a post-workout snack by adding protein powder. You can use vanilla, unflavored, or chocolate protein powder. The powder will support muscle recovery and growth after exercise.

Collagen powder: If you want to focus on skin and joint health, add powdered collagen instead.

Nut butters: When making this smoothie, feel free to experiment with other nut butters. Try replacing the peanut butter with cashew butter, hazelnut butter, or almond butter. They also have plant-based protein and healthy fats. You can even make this smoothie nut-free by using sunflower seed butter.

Step-by-Step Instructions

Oats, peanut butter, cinnamon, oat milk, and date syrup in a blender.

Step 1: Put oat milk and date syrup into the blender. Add peanut butter and cinnamon.

For a smooth and even blend, start with liquids.

Bananas, oats, peanut butter, cinnamon, oat milk, and date syrup in a blender.

Step 2: Add oats and frozen banana.

Peanut butter oatmeal smoothie blended together.

Step 3: Blend until smooth. Start on a low speed, then increase to high.

Pouring peanut butter oatmeal smoothie in a cup.

Step 4: Pour smoothie into a cup. Serve immediately.

Blender Tips

Slice fruit before putting them in the freezer.

It’s unsafe to put whole frozen bananas in the blender. Doing so can damage the blender’s blades or container. Be sure to cut the bananas into coins before freezing. If your blender is more powerful, you can cut them into slightly bigger chunks.

For a smooth blend, load liquids first.

When putting ingredients in the blender, go from lightest to heaviest. This will ensure an efficient blend. Add the liquids first. Next, load add-ins like powders and seeds. Then load any leafy greens, fresh fruit, frozen fruit, and ice, in that order.

Blend on high speed most of the time.

Start on low speed to chop up the ingredients. After about a few seconds, run your blender on high. This will keep the motor cool. If you run the blender on low the entire time, it’ll overheat the motor.

Rotate ingredients with a tamper.

The secret to an evenly blended smoothie is to use a tamper. Simply put it through the lid while the blender is on. Move the tamper around the container in a circle, hitting all 4 sides, which will remove air pockets and move the ingredients toward the blades.

Scrape out leftover smoothie.

With a blade scraper, you can remove leftover smoothie in the blender. It’s an easy way to avoid food waste.

Expert Tips

Avoid using unripe bananas, which have a green peel. They’re too bitter for smoothies.
You can use a pitted and chopped Medjool date in place of date syrup.
If you prefer less sweet drinks, omit the sweetener.
To intensify the nutty flavor, add another tablespoon of peanut butter.
Make the smoothie thinner by adding a small amount of oat milk. Then blend for 10 seconds.
Refrigerate leftover smoothie in jar with an airtight lid. Drink it within 1 to 2 days.

Peanut Butter Oatmeal Smoothie in a cup.

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