Refreshing Blackberry, Strawberry & Banana Smoothie Recipe

This sweet, creamy plant-based smoothie is light, refreshing, and ready in about five minutes. With just four simple ingredients, it’s a quick breakfast option or a satisfying light dessert.

A purple smoothie in a white bowl garnished with three blackberries, fresh mint, and white puffed cereal.

I often make this smoothie for a fast breakfast, but it’s sweet and satisfying enough to enjoy as a light dessert. The deep purple color comes from blackberries and the natural sweetness comes only from the fruit and creamy oat milk.

This berry banana smoothie uses frozen fruit for a frosty, smooth texture and unsweetened oat milk for a gentle, neutral base. For a hint of extra flavor, use vanilla oat milk.

If you want more berry ideas, try blueberry popsicles or a strawberry acai lemonade next.

Why You’ll Love This Recipe

  • Sweet & Refreshing: Bright berry flavor makes this smoothie perfect for breakfast, an afternoon snack, or a lighter dessert.
  • Quick & Easy: Beginner-friendly and ready in about five minutes with only four ingredients.
  • Vegan & Gluten-Free: Made without animal products or gluten, suitable for many dietary preferences.

Ingredient Notes

Labeled ingredients including blackberries, a banana, strawberries, and a measuring cup filled with oat milk.

Banana: Use frozen bananas for the creamiest, frosty consistency. If using fresh bananas, add a cup of ice to chill the drink.

Oat Milk: Unsweetened oat milk keeps the smoothie light; swap in vanilla oat milk for a slightly sweeter, more dessert-like flavor.

See the recipe card below for exact ingredient amounts.

A clear cup with a purple smoothie inside and fresh mint leaves on top of the smoothie.

Substitutions & Variations

Liquid base: Swap oat milk for almond milk, coconut milk, or a mild juice if preferred.

No banana: If you skip the banana, double the berries or add ½ cup of vanilla plant-based yogurt for creaminess and sweetness.

Different berries: Use any mix of berries you like—blackberries, strawberries, blueberries, or raspberries work well. Aim for about 1 ½ cups total.

Step by Step Instructions

Two images labeled step 1 and step 2. Step 1 has a blender with the top off filled with banana, berries, and oat milk. Step 2 has the same blender but the ingredients are blended together.

Making this vegan blackberry strawberry banana smoothie is simple:

Step 1: If you don’t have frozen fruit, freeze it ahead of time. Alternatively, add one cup of ice with fresh fruit. Place the fruit and oat milk into a blender and secure the lid.

Step 2: Blend for about 30 seconds or until smooth and creamy. Adjust texture by adding more oat milk in ½ cup increments to thin, or more frozen banana or ice to thicken.

A clear glass filled with a purple smoothie.

Expert Tips

  • Always use frozen fruit when possible to avoid adding ice and to keep the smoothie creamy and undiluted.
  • Freeze peeled bananas in portions. Peel, break in half, and freeze bananas so you always have them ready for smoothies.
  • Freeze at peak ripeness. Freeze your fruit when it’s perfectly ripe for the best flavor in every batch.

Frequently Asked Questions

What liquid is best for smoothies?

Oat milk is a favorite because it’s lightly sweet and adds a creamy texture, but plant milks like almond or coconut also work well.

What fruit combinations go well together for smoothies?

Most fruit combinations work. Stick to like flavors if you prefer a safe choice—mix berries together or group tropical fruits for consistent flavor.

More Plant-Based Smoothies You’ll Love

  • Blueberry Spinach Smoothie
  • Mango Smoothie
  • Spirulina Smoothie
  • Dragon Fruit Smoothie Bowl

If you enjoyed this recipe, please consider leaving a star rating or a comment — feedback is always appreciated!

An overhead image of a bright purple smoothie in a clear cup with fresh mint on top.

Blackberry Strawberry Banana Smoothie

Kelsey Riley

This sweet and creamy plant-based smoothie is light and refreshing. It takes five minutes to make and uses only four simple ingredients.
5 from 1 vote
Print Recipe
Prep Time 5 minutes
Total Time 5 minutes
Course Breakfast
Cuisine American
Servings 2
Calories 160 kcal

Equipment

  • Blender

Ingredients

  • 1 cup blackberries frozen
  • ½ cup strawberries frozen
  • 1 banana frozen
  • 1 cup oat milk

Instructions

  • Combine the fruit and oat milk in a blender.
  • Blend until smooth and creamy. Adjust the texture if needed by adding more oat milk or extra frozen fruit.

Notes

Best made with frozen fruit. If the fruit isn’t frozen, add one cup of ice to the blender.

Nutrition

Calories: 160kcal
Carbohydrates: 35.2g
Protein: 3.9g
Fat: 1.9g
Cholesterol: 0mg
Sodium: 54mg
Potassium: 383mg
Fiber: 7.1g
Sugar: 22g
Calcium: 205mg
Iron: 1mg

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