Growing up, peanut butter and banana sandwiches were a favorite, and once I discovered smoothies this flavor combo became a staple. The balance of sweet banana and salty peanut butter creates a comforting, shake-like smoothie that’s simple to make and satisfying to drink.

Peanut Butter Banana Smoothie
Whether you just finished a workout or need a quick breakfast on busy mornings, this peanut butter banana smoothie is an easy, delicious option. It blends like a milkshake but uses whole fruit, Greek yogurt, flaxseed and milk for a healthier, nutrient-dense version.
What does this peanut butter smoothie taste like?
This smoothie tastes like a creamy peanut butter and banana shake — sweet, nutty and rich, with a smooth, spoonable texture when made thick. It captures the indulgence of a milkshake while delivering protein, fiber and healthy fats. If you want a more drinkable consistency, thin it with a little extra milk. For a thick, spoonable version, use less liquid and more frozen banana.

What You Need
- Frozen bananas: Use frozen sliced bananas for the best texture. You can buy them pre-frozen or freeze ripe bananas at home in slices.
- Greek yogurt: Adds creaminess and protein. Plain or vanilla Greek yogurt both work well.
- Ground flax seeds: A small amount boosts fiber and omega-3s; ground flax blends more smoothly than whole seeds.
- Unsweetened almond milk: The recipe calls for almond milk, but any milk or milk alternative will work.
- Vanilla extract: Optional but enhances the flavor; omit if you don’t have any on hand.
- All-natural peanut butter: Use a creamy, additive-free peanut butter for the purest taste.
Protein Powder Suggestions
If you want to boost protein further, add a scoop of your preferred protein powder. Whey, plant-based, or collagen powders all blend well and will increase the protein content to make this smoothie more filling.

Optional Add-Ins
Customize the smoothie with nutritious or indulgent add-ins. A few ideas:
- Mini chocolate chips for a dessert-like touch
- Chopped peanuts for extra crunch
- Protein powder for added protein
- Collagen powder for joint and skin support
- A handful of spinach or kale to sneak in leafy greens
This smoothie is excellent when served thick and eaten with a spoon, topped with extra peanut butter, chopped nuts, or a few chocolate chips. It also makes a great base for a smoothie bowl if you prefer to eat it with granola and fruit toppings.

More Banana Smoothie Ideas
- Peanut Butter Strawberry Banana Smoothie
- Peanut Butter Banana Cold Brew Protein Smoothie
- The Classic Breakfast Smoothie with oats and fruit
- Chocolate Banana Protein Smoothie
- A collection of 100+ healthy smoothie recipes for more options

Guide to Smoothies
If you want consistent results, use a high-speed blender, start with frozen fruit for thickness, and adjust liquid to reach your preferred consistency. Thick smoothies are best with less liquid and more frozen fruit; thin smoothies benefit from more milk or water.
Peanut Butter Banana Smoothie — Recipe
This thick and creamy peanut butter banana smoothie serves two and comes together in minutes. It delivers a satisfying mix of protein, fiber and healthy fats.
Servings: 2
Prep time: 10 minutes
Total time: 10 minutes
Ingredients
- 2 cups frozen sliced bananas
- 1/2 cup nonfat Greek yogurt (or plain Greek yogurt)
- 1/2 tablespoon ground flax seeds
- 1 cup unsweetened almond milk (or any milk of choice)
- 1 teaspoon vanilla extract (optional)
- 2 tablespoons all-natural peanut butter
Instructions
- Place all ingredients in a high-speed blender.
- Blend on high until smooth, scraping down the sides if needed. Add more almond milk a tablespoon at a time to reach your desired consistency.
- Serve immediately. For a spoonable texture, serve thicker and top with chopped nuts, mini chocolate chips, or a drizzle of peanut butter.
Storage and Tips
Make this smoothie fresh for best texture. If you must store it, keep in an airtight container in the refrigerator and consume within 24 hours; shake or stir before drinking. To prepare in advance, freeze individual portions in jars and thaw slightly before blending with a splash of milk to refresh the texture.
Nutrition (approximate per serving)
Calories: 295 kcal, Carbohydrates: 40 g, Protein: 12 g, Fat: 10 g, Fiber: 6 g, Sugar: 21 g. Nutrition values are estimates and should be used as a guideline.

If you try this recipe, consider leaving a note about how you customized it — whether you added protein powder, chocolate, or greens — and any tips that worked for you. Enjoy!