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pink grapefruit mocktail in a short glass garnished with thyme
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4.72 from 7 votes

Grapefruit Thyme Fizz

An easy sparkling grapefruit mocktail with thyme.
Prep Time5 mins
Cook Time10 mins
Infusing time30 mins
Total Time45 mins
Course: Drinks
Cuisine: American
Diet: Vegan, Vegetarian
Servings: 1
Calories: 42kcal
Author: Nat


  • 1 cup water
  • 1 tbsp Stevia or sweetener/sugar of choice (see note 1)
  • 1/2 cup thyme
  • 1/2 cup grapefruit juice
  • 1/3 cup soda water


To make the thyme syrup

  • In a small saucepan, combine water and sweetener/sugar of choice over medium heat. Stir until the sweetener/sugar is dissolved.
  • Add thyme and simmer on very low (barely bubbling) for 10 minutes. Remove from heat and let sit it for at least half an hour, or up to 3 hours. Strain and cool.

To make the mocktail

  • Add 1 tablespoon thyme syrup and 1/2 cup grapefruit juice to a glass. Add lots of ice, top with soda water and stir gently. Garnish with extra thyme and serve.
  • You'll have enough thyme syrup for 4-5 mocktails!


Note 1: I used Stevia for this recipe and 1 tbsp was plenty as Stevia is so sweet. If you are using regular sugar, use a 1:1 ratio of sugar to water, so 1 cup sugar and 1 cup water. If you use a different sugar replacement, check their recommendations on the pack.


Serving: 270g | Calories: 42kcal | Carbohydrates: 8g | Protein: 1g | Fat: 1g | Sodium: 31mg | Potassium: 193mg | Fiber: 1g | Sugar: 13g | Vitamin A: 8IU | Vitamin C: 32mg | Calcium: 20mg | Iron: 1mg