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French 75 with St. Germain – Keto Cocktail Recipe

A French 75 cocktail is so refreshing! However, when you make it with the traditional recipe, it has quite a lot of sugar. In this French 75 with St. Germain variation, you can use either keto simple syrup to add sweetness or a small amount of the French liquor. Using a small amount of St. Germain in this keto cocktail not only adds a hint of sweetness, but also the delightful scents of lychee, peach, grapefruit zest and floral notes from the elderflower.

Using the optional St. Germain will add about 2 grams of carbs to each serving. However, it it adds a wonderful flavor and smell that is great for special occasions. If you use the St. Germain in this French 75 recipe, eliminate or significantly reduce the keto simple syrup.

St. Germain is an interesting liquor. It's made with about 1000 freshly picked elderflowers in each bottle. It was first created in 2007 and has since become a popular addition to cocktails. Elderflower season only lasts for a few weeks in late spring and they're very selective about using the best blossoms.

French 75 With St. Germain

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It's difficult to find out exactly how much sugar is in any alcohol since they're not required to provide nutrition information. However, most online sources report that St. Germain has about 12 grams of sugar per ounce. If you drank just St. Germain, this is too much sugar to stay in ketosis. As a flavor accent though, it's perfectly fine in this French 75 recipe.

French 75 with St. Germain

The carbs in this French 75 with St. Germain come from three sources. The St. Germain, the lemon juice and the sparkling wine. Dry (brut, extra brut or brut nature) sparkling wine is generally very low carb. That said, you can ensure the least amount of sugar by using one from Dry Farm Wines. Their wines are tested to have under one gram of sugar in the entire bottle. You can read our full review of Dry Farm Wines here and use our link to get an extra bottle for a penny.

You can also reduce the calories and alcohol in this drink by using a nonalcoholic gin. My favorite is Ritual Zero Proof and you can get 20 percent off with code HNG20 at checkout.

French 75 Cocktail

Prep Time: 5 minutes
Total Time: 5 minutes
Servings: 2 people


  • 3 ounces gin
  • 1 ounce fresh lemon juice
  • ½ ounce keto simple syrup
  • ½ ounce St. Germain, optional
  • 4 ounces sparkling wine, champagne, prosecco or cava
  • Ice, for shaking
  • Lemon twists, for garnish


  • Pour the gin, lemon juice and simple syrup or St. Germain into a cocktail shaker.
  • Add ice and shake to mix.
  • Pour the mixture evenly into into glasses that can hold at least 6 ounces of liquid.
  • Top each drink equally with sparkling wine and garnish with a lemon twist, if desired.


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Serving: 1servingCalories: 129kcalCarbohydrates: 1gProtein: 0.1gFat: 0.04gSaturated Fat: 0.01gPolyunsaturated Fat: 0.01gSodium: 5mgPotassium: 65mgFiber: 0.04gSugar: 0.4gCalcium: 6mgIron: 0.3mgNet Carbohydrates: 1g

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