Ready to beat the heat? This keto-friendly Cucumber Cooler recipe is your new go-to summer drink. It’s super easy to whip up, requires just a few ingredients, and gives you a perfectly refreshing sip in no time. Light, hydrating, and oh-so-tasty, it’s just what you need to cool down and chill out!

This Cucumber Mint Cooler recipe is designed for simplicity and flavor. Blending fresh cucumbers with mint and lime creates a refreshing base, which is then lightly sweetened and topped with soda water for a fizzy lift. My personal experiments led to using powdered erythritol as a sugar-free sweetener, balancing health with just the right touch of sweetness, making this cucumber drink not only refreshing but guilt-free too!
โค๏ธ Why you will love this recipe
- Quick to prepare: In just a few minutes, you’ll have a delicious drink ready to cool you down.
- Healthy choice: With natural ingredients and no added sugars if you opt for a sugar-free sweetener, it’s good for you! 4g net carbs per serving.
- Versatile: Perfect for a non-alcoholic treat or a fancy cocktail base.
- Absolutely refreshing: Ideal for sipping on those hot summer days.
- Kid-friendly: A fun non-alcoholic drink for everyone in the family to enjoy.
๐๏ธ Key ingredients & substitutions

- Cucumber: Adds a fresh, clean taste. English cucumber is preferred for its fewer seeds and smoother flavor, but any type will do.
- Lime: Provides a tangy kick that balances the sweetness. Lemon juice can be a good substitute if limes are not available.
- Fresh mint: Brings a burst of coolness. If mint is too strong for you, try basil for a milder but still aromatic alternative.
- Club soda: Adds the fizz that lifts the drink. Tonic water can be used for a slightly sweeter taste.
- Sugar or sweetener: I used powdered erythritol to keep it healthier, but you can use regular sugar, honey, or agave nectar depending on your preference. Keto simple syrup is also great in this recipe.
๐ฅฃ How to make a cucumber cooler mocktail
- Prepare your cucumber: Chop the cucumber into one-inch pieces to ensure it blends smoothly.
- Combine ingredients: Place the chopped cucumber, mint leaves, lime juice, and your choice of sweetener into a blender.
- Blend until smooth: Blend the mixture until everything is thoroughly pureed and the sweetener is well dissolved.


- Strain the mixture: Pour the blended mixture through a fine mesh strainer into a jug or bowl, using a spatula to press out all the liquid.

- Adjust to taste: Taste your concoction and adjust the sweetness if necessary, adding more sweetener if you prefer it sweeter.
- Serve with ice: Fill two glasses with ice cubes, pour the strained cooler over the ice.
- Add fizz: Top up each glass with soda water to your liking.

- Garnish and enjoy: Garnish with a wedge of lime or a sprig of mint for that extra touch of freshness.

๐ช Recipe notes & tips
- Cucumber choice: Using English cucumbers is best as they are less bitter and have fewer seeds, but regular cucumbers work well too; just make sure to peel them first.
- Sweetener adjustments: Start with a small amount of sweetener and adjust according to your taste. Remember, you can always add more, but you can’t take it out!
- Straining the mix: For a smoother drink, ensure to strain thoroughly. If you prefer a bit more texture, a less fine mesh can be used.
- Serving size: This recipe makes enough for two generous servings. If you’re hosting a party, simply multiply the ingredients and add them to a big pitcher.
โจ Variations
- Cucumber cooler cocktail: Add a splash of gin or cucumber vodka for an adult version of this refreshing drink.
- Herbal notes: Experiment with different herbs like basil or rosemary if mint isn’t your favorite.
- Fruit infusions: Throw in some strawberries or raspberries in the blender for a fruity variation.
- Sparkling mineral: Use sparkling mineral water instead of soda water for a different kind of fizz.
- Tropical vibes: Add a splash of coconut water for a tropical twist, enhancing the hydrating qualities.
- Citrus change: Swap out the lime for lemon, orange, or grapefruit, or use a mix for a more complex citrus flavor.
๐ซ Storage instructions
- Refrigerate immediately: Pour any leftover cucumber mint cooler into a sealed container and keep it in the refrigerator.
- Shelf life: It’s best consumed within 24-48 hours to enjoy its freshest taste and vibrant flavors.
- Avoid freezing: Freezing can alter the texture and flavor, so it’s best to make it fresh and drink it while it’s cold and refreshing.
- Stir before serving: If the mixture separates in the fridge, just give it a good stir or shake before serving to redistribute the flavors.
๐ฝ๏ธ How to serve
- Light snacks: Enjoy this cooler with keto-friendly dips like guacamole, ranch, or a cream cheese-based dip served with cucumber slices or celery sticks instead of chips.
- Barbecue favorites: The freshness of the cucumber mint cooler complements grilled meats and veggies perfectly.
- Seafood dishes: It goes great with seafood, especially grilled shrimp or a light fish ceviche.
- Salads: Serve with a pickled beet salad or fruit salad for a refreshing meal during hot weather.
- Desserts: Finish with a light dessert, such as sorbet or keto lemon jello, to keep the meal refreshing from start to finish.
โ Frequently asked questions
Yes, you can prepare the cucumber mixture a day in advance and store it in the refrigerator. Just add soda water and ice before serving to maintain the fizz and freshness.
Fresh lime juice is best for flavor, but if you’re in a pinch, bottled lime juice can work. Just be aware it might slightly alter the taste.
A slice of cucumber, a sprig of mint, or a wedge of lime are all great choices that add a touch of elegance and extra flavor.

๐ More drink recipes you will love
- Butterfly Pea Milk Tea
- Christmas Gin Recipe (great as a mocktail too!)
- Sumac Tea
- Ginger Bug Recipe
- Iced Strawberry Latte
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๐ Recipe

Cucumber Cooler Mocktail
Ingredients
- 1 large cucumber
- 1 lime juiced
- 1/4 cup fresh mint
- 3 tablespoons powdered sweetener or sweetener of choice I used powdered erythritol
- Splash of soda water a.k.a. club soda
- lime wedges to garnish
Instructions
- Chop the cucumber into 1 inch pieces.1 large cucumber
- Place all of the ingredients except the soda water into a blender.1 lime, 1/4 cup fresh mint, 3 tablespoons powdered sweetener or sweetener of choice
- Blend until everything is pureed and the sugar or sweetener has dissolved.
- Strain it through a fine mesh strainer into a jug or bowl, pressing it lightly with a spatula as you go.
- Taste and adjust the sweetness.
- Fill 2 glasses with ice, pour the cucumber cooler over the ice and top up the drinks with soda water.Splash of soda water
- Garnish with lime wedges if desired, and enjoy!
Notes
- Cucumber choice: Using English cucumbers is best as they are less bitter and have fewer seeds, but regular cucumbers work well too; just make sure to peel them first.
- Sweetener adjustments: Start with a small amount of sweetener and adjust according to your taste. Remember, you can always add more, but you can’t take it out!
- Straining the mix: For a smoother drink, ensure to strain thoroughly. If you prefer a bit more texture, a less fine mesh can be used.
- Serving size: This recipe makes enough for two generous servings. If you’re hosting a party, simply multiply the ingredients and add them to a big pitcher.
- Cucumber cooler cocktail: Add a splash of gin or cucumber vodka for an adult version of this refreshing drink.
Storage instructions
- Refrigerate immediately: Pour any leftover cucumber mint cooler into a sealed container and keep it in the refrigerator.
- Shelf life: It’s best consumed within 24-48 hours to enjoy its freshest taste and vibrant flavors.
- Avoid freezing: Freezing can alter the texture and flavor, so it’s best to make it fresh and drink it while it’s cold and refreshing.
- Stir before serving: If the mixture separates in the fridge, just give it a good stir or shake before serving to redistribute the flavors.

Delicious!