Rosemary Grapefruit Gin Fizz Cocktail

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This gin fizz cocktail is sweet and tart, refreshingly crisp, and delicious!

Prep Time5

Cook Time3

Total Time8

Course: Drink

Cuisine: American

Keyword: easy cocktail recipe, gin cocktail

Servings: serving

Calories: 586kcal

To a small saucepan, add 1/2 cup water, 1/2 cup granulated sugar, and 2 sprigs fresh rosemary. Bring to a boil over MED heat, stirring occasionally as the sugar dissolves.
Let the syrup simmer for about 2-3 minutes to allow the rosemary to infuse.
Remove from the heat and allow to cool completely. Discard rosemary sprigs before using later.

Fill a glass with some ice cubes, then pour in 2 ounces fresh grapefruit juice, 1 1/2 ounces gin, 1 ounce simple syrup, and top it off with 2 ounces club soda.

This recipe makes one (6.5 oz) cocktail. There are large batch instructions below.
Any times listed do not account for the time the simple syrup needs to cool to room temperature, as this will vary from person to person.
Calorie count includes the entire simple syrup, rather than the 1 oz used, so you'll need to do some calculations if nutritional information is important to you.

If making more than 7-8 drinks, you'll need to double the simple syrup.
You can make a large batch with any multiple of the recipe, you just need to multiply all the cocktail ingredient amounts by the same number, and you’ll want to make sure you have a large enough pitcher to hold everything.
To a large pitcher, add the grapefruit juice, gin, and simple syrup.
Stir together, then cover and chill for several hours, or up to 1-2 days.
When ready to serve, stir really well, then pour the contents of the pitcher over ice into glasses. Top off glasses with the club soda, add garnishes and serve!