Keto Raspberry Lemonade (Stevia-sweetened) Recipe

A vibrant, tangy-sweet raspberry lemonade that delivers all the refreshing satisfaction without the carbs, perfect for keto enthusiasts seeking a guilt-free summer sipper.
Difficulty:
Beginner
Prep Time:
10 mins
Cook Time:
Serves:
2 mocktails
A tall, ice-filled highball glass showcasing layers of vivid raspberry-pink and pale lemon hues, photographed in bright natural daylight that highlights the drink's jewel-like clarity. Fresh raspberries float among crushed ice, while a lemon wheel and mint sprig garnish the rim. Beads of condensation form on the glass exterior, suggesting refreshing coolness. A small bowl of fresh raspberries and sliced lemons sits beside the drink on a light marble surface, with a small dish of stevia crystals visible in the corner, emphasizing the drink's keto-friendly nature.

Ingredients

<ul class="ingredients-main-list"><li class="ingredients-single-item">120g fresh raspberries (plus extra for garnish)</li><li class="ingredients-single-item">120ml freshly squeezed lemon juice (approximately 3-4 lemons)</li><li class="ingredients-single-item">500ml cold filtered water</li><li class="ingredients-single-item">1/2 tsp liquid stevia (or to taste)</li><li class="ingredients-single-item">1/2 tsp lemon zest</li><li class="ingredients-single-item">250ml sparkling water (optional)</li><li class="ingredients-single-item">Ice cubes</li><li class="ingredients-single-item">Fresh lemon slices and mint leaves for garnish</li></ul>

Equipment

<ul class="equipment-main-list"><li class="equipment-single-item">Blender or food processor</li><li class="equipment-single-item">Fine mesh strainer</li><li class="equipment-single-item">Citrus juicer or reamer</li><li class="equipment-single-item">Highball glasses</li></ul>
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Directions

<ol class="no-list-style"><li class="MethodStepper"><h4 class="step-title">Step 1</h4>Place fresh raspberries in a blender or food processor and pulse until completely pureed. The vibrant red color will intensify as the berries break down, releasing their natural juices and flavor compounds.</li><li class="MethodStepper"><h4 class="step-title">Step 2</h4>Pour the raspberry puree through a fine mesh strainer into a pitcher, using the back of a spoon to press and extract all the juice while leaving the seeds behind. This step ensures a smooth, seed-free texture that's pleasant to drink.</li><li class="MethodStepper"><h4 class="step-title">Step 3</h4>Add freshly squeezed lemon juice to the strained raspberry puree. Fresh juice is crucial here - the bright acidity and natural lemon oils create a significantly more vibrant flavor than bottled alternatives.</li><li class="MethodStepper"><h4 class="step-title">Step 4</h4>Stir in the filtered water and lemon zest. The zest contains essential oils that enhance the lemony aroma dramatically without adding carbs or calories.</li><li class="MethodStepper"><h4 class="step-title">Step 5</h4>Add liquid stevia starting with 1/2 teaspoon, then taste and adjust if needed. Stevia potency varies by brand, so start conservatively and increase gradually until you reach your desired sweetness level. Unlike sugar, stevia won't fully dissolve, so stir thoroughly.</li><li class="MethodStepper"><h4 class="step-title">Step 6</h4>Refrigerate the mixture for at least 30 minutes to allow flavors to meld and develop. The raspberry flavor will intensify, and the natural pectin in the berries will slightly thicken the texture.</li><li class="MethodStepper"><h4 class="step-title">Step 7</h4>To serve, fill highball glasses with ice cubes, pour in the raspberry lemonade, and top with sparkling water if desired for a pleasant effervescence that enhances the drinking experience without adding carbs.</li><li class="MethodStepper"><h4 class="step-title">Step 8</h4>Garnish with fresh raspberries, lemon slices, and mint leaves. The mint's aroma complements the raspberry notes beautifully, while the fresh garnishes signal to the brain that a refreshing experience awaits.</li></ol>

Nutrition Facts (per serving)

🍽️ Serving Size: 1 serving
🔥 Calories: 318 calories
🥑 Fat: 22 g
🧈 Saturated Fat: 5 g
🍞 Carbohydrates: 8 g
🍭 Sugar: 3 g
🍗 Protein: 26 g
🫀 Cholesterol: 65 mg
🧂 Sodium: 620 mg

Chef’s Notes

A few helpful details for making this recipe.

Can I use frozen raspberries instead of fresh for this low-carb mocktail?

Yes, frozen raspberries work perfectly as a substitute! Allow them to thaw slightly before blending for easier processing. The frozen berries may actually create a more intense colour and flavour than fresh ones, and they're typically available year-round at a lower cost while maintaining the same low carb count.

Why is straining the raspberry puree an important step in this recipe?

Straining removes the tiny seeds that would otherwise create a gritty texture. This step transforms the drink into a smooth, elegant refreshment while maintaining the vibrant flavour and beautiful colour. Don't rush this process - press firmly with a spoon to extract all the precious juice.

How long will this keto-friendly drink stay fresh in the refrigerator?

This sugar-free raspberry lemonade will keep for up to 3 days when stored in an airtight container in the refrigerator. The flavour actually improves after the first 24 hours as the ingredients meld together. Add the sparkling water only when serving to maintain the refreshing fizz.

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