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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

Ingredients  

  • 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

Instructions

  • 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.

Nutrition

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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Author

  • Cheryl McColgan

    Cheryl McColgan is the Founder and Editor in Chief of Heal Nourish Grow, where she has published evidence-based health and nutrition content since 2018.

    With over 30 years of experience in fitness, nutrition, and healthy living, and nearly 20 years of professional editorial and journalism experience, she brings both subject-matter depth and trained editorial judgment to everything on the site.

    Cheryl holds a degree in Psychology with a minor in Addictions Studies, completed graduate training in Clinical Psychology, and is a NASM Certified Personal Trainer and E-RYT Certified Yoga Instructor and trained in Yoga Therapy.

    She is the author of 21 Day Fat Loss Kickstart, Make Keto Easy, Take Diet Breaks and Still Lose Weight, The Grain Free Cookbook for Beginners, and Easy Weeknight Keto.

    Read more about Cheryl and the journey that created Heal Nourish Grow on the about page.

    Cheryl McColgan is the founder of Heal Nourish Grow, where she writes about protein, body composition, healthy aging, and evidence-based nutrition and wellness along with the everyday habits that actually make those things work in real life.

    With a background in psychology and graduate training in clinical psychology, plus nearly 20 years of experience in editorial and publishing, Cheryl approaches health from both a research and real-world perspective. She’s also been immersed in fitness and nutrition for more than 25 years, which gives her a practical lens most purely academic content tends to miss.

    Her work today focuses heavily on protein intake (especially for women), muscle retention, metabolic health, and sustainable fat loss, along with topics like sleep, wellness, recovery, and wearable health tech. You’ll also find a mix of high-protein, low-carb recipes designed to make hitting those goals easier without overcomplicating things.

    Cheryl’s interest in health and nutrition became more personal after navigating her own health challenges, which pushed her to dig deeper into how lifestyle, diet and daily habits impact long-term health. That experience continues to shape how she approaches everything on this site: practical, realistic, and focused on what actually works over time.
    What Cheryl Covers
    Most of the content here falls into a few core areas:

    Protein & Muscle Health: how much you actually need, especially for women and how to use protein to support strength, body composition, and aging
    Fat Loss & Metabolic Health: sustainable approaches that prioritize muscle retention and long-term results
    Healthy Habits & Lifestyle: sleep, movement, strength training, consistency, and the small things that compound over time
    Wearables & Recovery: real-world testing and comparisons of tools like Oura, Whoop and others
    High-Protein & Low-Carb Recipes: simple, realistic meals that support your goals without feeling restrictive
    Travel & Lifestyle: wellness-focused travel, outdoor experiences, and a slightly more elevated take on healthy living

    If you're new, here are a few good places to begin:

    30 Day Healthy Habits Challenge

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