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Creamy Blackberry Strawberry Banana Smoothie Recipe

This sweet, creamy plant-based smoothie is light, refreshing, and ready in about five minutes. It relies on just four simple ingredients and makes a naturally sweet, satisfying drink or a lighter dessert.

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

This berry banana smoothie is great for a quick breakfast, an afternoon pick-me-up, or a light dessert. Using frozen fruit and creamy oat milk gives it a velvety texture and a vibrant deep purple color from the blackberries. The fruit provides the sweetness, so no added sugar is necessary.

Simple to prepare and naturally vegan and gluten-free, this recipe works well for many dietary needs and is forgiving if you want to swap ingredients.

If you want more berry ideas, try recipes like Blueberry Popsicles or Strawberry Acai Lemonade for another fruity treat.

Why You’ll Love This Recipe

  • Sweet & Refreshing: Enjoy it at breakfast, as a snack, or as a lighter dessert—its natural fruit sweetness makes it versatile.
  • Fast & Easy: This beginner-friendly recipe takes about five minutes and requires only four ingredients.
  • Vegan & Gluten-Free: Made without animal products or gluten, it fits many dietary preferences.

Ingredient Notes

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

Banana: Use frozen banana for a thicker, creamier smoothie. Slice and freeze ripe bananas in advance for convenience.

Oat Milk: Unsweetened oat milk works well, but vanilla oat milk adds a pleasant hint of flavor if you prefer a slightly sweeter profile.

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 you prefer a different flavor or lower calories.

Skip the banana: If you don’t want banana, double the berries or add ½ cup of vanilla plant-based yogurt for creaminess and body.

Mix the berries: Use a combination of blackberries, strawberries, blueberries, or raspberries. The recipe works well with a total of about 1½ cups of mixed berries.

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 blackberry strawberry banana smoothie is straightforward:

  1. Prepare the fruit: Use frozen berries and banana. If using fresh fruit, add 1 cup of ice to achieve a chilled, thick texture.
  2. Combine and blend: Place the fruit and oat milk in a blender, secure the lid, and blend until smooth and creamy—about 30 seconds to one minute depending on your blender.
  3. Adjust texture: If the smoothie is too thick, add an extra ½ cup of oat milk in small increments. To thicken, add more frozen banana or a handful of ice.
A clear glass filled with a purple smoothie.

Expert Tips

  • Work with frozen fruit: Frozen berries and banana create a thick, creamy texture without diluting the flavor with ice.
  • Keep frozen banana on hand: Peel and freeze extra bananas in portions so you always have them ready for smoothies.
  • Freeze at peak ripeness: Freeze fruit when it’s perfectly ripe for the best flavor in your blended drinks.

Frequently Asked Questions

What liquid is best for smoothies? Oat milk is a favorite because it adds a mild sweetness and creamy texture, but plant milks like almond or coconut, and even juice, are fine alternatives.

What fruit combinations work well? Most fruit pairs nicely in smoothies. For predictable results, group similar types together—berries with berries or tropical fruits with tropical fruits.

More Plant-Based Smoothies You’ll Love

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    Blueberry Spinach Smoothie
  • A brown coconut bowl with an orange smoothie inside. The smoothie is garnished with coconut flakes and fresh mint.

    Mango Smoothie
  • A green smoothie in a clear glass, garnished with white hemp seeds.

    Spirulina Smoothie
  • A pink dragon fruit smoothie in a fresh coconut. Garnished with balls of dragon fruit, kiwi, and fresh mint.

    Dragon Fruit Smoothie Bowl

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Blackberry Strawberry Banana Smoothie

A sweet, creamy plant-based smoothie made with frozen blackberries, strawberries, banana, and oat milk. Ready in five minutes.

Author: Kelsey Riley

Prep Time: 5 mins
Total Time: 5 mins
Servings: 2
Calories: 160 kcal (per serving)

Equipment

  • Blender

Ingredients

  • 1 cup frozen blackberries
  • ½ cup frozen strawberries
  • 1 frozen banana
  • 1 cup oat milk (unsweetened or vanilla)

Instructions

  1. Place the frozen blackberries, frozen strawberries, frozen banana, and oat milk into a blender.
  2. Blend until the mixture is smooth and creamy. If needed, add more oat milk to thin or extra frozen banana or ice to thicken.
  3. Pour into glasses and serve immediately.

Notes

This smoothie is best made with frozen fruit to avoid diluting the flavor. If you only have fresh fruit, add one cup of ice when blending.

Nutrition (per serving)

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