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Easy triple berry slushy recipe

This easy berry slushy is made from only a few ingredients and comes together in no time. Blackberries, raspberries and blueberries are blended into a healthy, no sugar added, triple berry slush that will help you beat the summer heat.

I’ll give you variations and substitutions where I can, plus helpful tips and tricks for success. Read on for this info as well as the recipe. If you’d like to skip straight to the recipe, use the jump to recipe button at the top of the post.

You may also be interested in my frozen strawberry daiquiri and my cherry coconut rum slush recipes. For ease of browsing, you can find all of my drinks recipes in one place.

Berry slushy with frozen berry garnish and blue straw.

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Why you should make this recipe

If you love icy cold slushies made with lots of berries, this frozen treat might be for you.

  • Versatile – You can use any combination of berries that you like.
  • No sugar added – The berries provide plenty of sweetness to this frozen drink, but you can add a bit of honey if your berries aren’t sweet enough.
  • Kid-friendly – This frozen beverage is perfect for the whole family.

Berry slushy

Berry slushies are an easy and delicious treat that everyone can enjoy. Use a variety of berries and a bit of soda or sparkling water to make an icy cold frozen treat to help you combat the heat of summer.

Two glasses filled with frozen triple berry slush.

If you are a fan of “slurpees”, this is a much healthier option that you can make at home with only a few ingredients. The best part is that you can make it exactly how you like it.


This frozen berry slushie has only a few ingredients, and only takes a few minutes to blend together.

Ingredients for triple berry slush.
  • Blueberries – Keep some in the freezer for a quick addition to the slush.
  • Raspberries – Raspberries add a little tart and a little sweet.
  • Blackberries – Plump, juicy blackberries give it great flavor.
  • Soda, seltzer or sparkling water – I recommend either a lemon-lime or berry flavor.

How to make

Here’s a quick summary of how to make a berry slushy. Please see the recipe card at the bottom of this post for the full recipe. 

Overhead photo of two glasses of berry slushies.

First, add liquid to the blender. This is important if you are using frozen fruit. The blender needs liquid to get the mixture going.

Then, add the fruit, and ice, if using, to the pitcher of the blender and puree until thick and slushy. Normally, the berries are sweet enough for me, but you’ll want to taste your slushie and determine if you need to add any sweetener.

How to make a slushie with frozen berries

The easiest way to do this is to put them on a sheet pan in a single layer and freeze for 2 or 3 hours, then they can be transferred to a freezer safe container. It is important to only use pristine berries when doing this. If the berries are bruised or mushy, it really isn’t worth the effort in the end.

If using frozen berries to make the slush, pour liquid into blender, then add half of the berries. Let the blender puree the mixture, then add remaining berries and puree until thick and slushy.

Glasses of triple berry slushies with frozen berries.


Can I make a mixed berry slushie ahead of time?

Yes! Make the slushy recipe, then pour into ice cube trays and freeze. A quick blitz in the blender will bring it back to slush consistency.

Can I use frozen berries?

Yes. You can either buy a bag of mixed berries, or you can freeze your own.

Variations and substitutions

  • Make it an adult beverage by swapping out the soda/seltzer/sparkling water with vodka or wine.
  • Consider adding a few mint or basil leaves for an herbaceous twist.
  • Add in stone fruit like peaches and cherries to make different combinations.
Overhead view of two glasses of berry slushie with frozen fruit.

Helpful tools and equipment

  • High power blender – This blender isn’t inexpensive, but it blasts through ice and it will last you for ages.
  • Jumbo smoothie straws – You’ll need a big straw to drink this thick slushy.

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Triple berry slushy recipe

Cheryl Bennett
This quick and easy frozen berry slushy is a delicious way to beat the summer heat.
No ratings yet
Prep Time 5 minutes
Cook Time 3 minutes
Total Time 8 minutes
Course Drinks
Cuisine American
Servings 2 drinks
Calories 320 kcal


  • 1 1/2 cups sparkling water or soda *see note // I recommend either a lemon-lime flavor or a berry flavor water
  • 2 cups mixed berries *see note
  • 1 cup crushed ice optional
  • Honey or simple syrup if desired (*see note)
  • Fresh or frozen berries as garnish


  • In the pitcher of a blender, combine sparkling water/soda with 2 cups of mixed berries. *If berries are frozen, omit the 1 cup of ice. If using fresh berries, add crushed ice to blender after berries and liquid.
  • Puree until thick and slushy. If mixture is too thick, you may have to stop the blender and stir the slush mixture around to get it going again.
  • Taste, and add sweetener, if desired.
  • Pour into two 10 – 12 ounce glasses and top each with a few frozen berries. (Frozen berries look cool and they help keep your drink cold.)


    • Soda tends to be sweeter, so if you like it sweet, go with soda instead of sparkling water.
    • I used blueberries, raspberries and blackberries. Use whatever you have, or whichever berries you prefer.
    • If you have leftover slushy, pour into an ice cube tray and freeze. You can blend it up to make another slush.
    • Make it into an adult beverage by swapping out the sparking water for vodka, gin, red, white or rosé wine.
    • To make simple syrup: combine equal parts water and granulated sugar in a small sauce pan over medium-low heat. Stir to combine, and let it come to a simmer. When sugar has completely dissolved, remove from heat and set aside to cool.
    • To easily freeze berries, place them on a baking sheet in a single layer. Place in the freezer for a couple of hours, then transfer to an airtight container. You can store them in the freezer for up to 3 months.
    • If you are using frozen fruit, omit the ice. If you are using fresh fruit, you will need a cup of crushed ice. Crushed ice is easier on your blender than cubes, break it up if you need to, it's better than breaking your blender.
    • Consider adding a few mint leaves.


Serving: 1gCalories: 320kcalCarbohydrates: 133gProtein: 3gFat: 2gPolyunsaturated Fat: 1gSodium: 22mgFiber: 11gSugar: 117g
Tried this recipe?Let us know how it was!

Thanks for stopping by! Have a delicious day 🙂

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Questions? Send me an email, I’m happy to help. I’d love to send you weekly tips and recipes, so you can get updates about what’s happening in the kitchen!

Originally published July 23, 2011.

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