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lovely handheld shot of pouring creme de mure blackberry liqueur into a wine glass
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Crème de Mûre Blackberry Liqueur (Sugar Free)

If you want a seriously easy way to elevate your next keto cocktail, you have to try this sugar free creme de mure! This homemade blackberry liqueur only requires 4 simple ingredients, and just a little patience while the berries soak. That's it! Mix up a keto bourbon bramble this weekend!
Prep Time20 mins
Cook Time10 mins
Fermentation time7 d
Total Time7 d 30 mins
Course: Drinks
Cuisine: French
Keyword: blackberry, liqueur, refined sugar free, sugar free
Servings: 20 servings
Calories: 34kcal
Author: Briana


  • 375 milliliters red wine (choose something medium bodied that you enjoy drinking)
  • 504 grams blackberries, washed and stems removed (about 2 packages)
  • 256 grams allulose sweetener (about 1 & 1/3 cups)
  • 60 milliliters vodka or gin


  • Place blackberries in a large bowl and cover with red wine. Mash very well with a potato masher or fork to release the blackberry juices. Cover and let sit for at least 48 hours. We like to leave it for 7 days. We put it in a mason jar so we can shake it every day or so. Store in a cool, dark place.
  • After you're done letting the wine infuse with the blackberries, strain once with a mesh sieve, then thru cheese cloth to get rid of any extra bits.
  • Pour liquid into a large sauce pan and add allulose. Simmer gently for about 10 minutes to dissolve it. Remove from heat and cool completely. Stir in your liquor of choice. Either vodka or gin will work great. That's it, enjoy!
  •  Store in clean bottles in a cool, dark place for up to 1 year.


  • We're unable to give any information about the alcohol content in this liqueur. We image it's similar to any store bought version, but we can't make any guarantees.
  • It's an estimate that there are about 20 servings in each batch after removing most of the actual blackberries after straining.  Each serving is roughly 1.5 ounces. To get a more accurate picture of the serving size, you can weigh your final product to determine the amount of liquid leftover. Most servings are between 1 - 2 ounces, just depending on the person. 
  • Use a red wine that you enjoy drinking for this! Nothing too sweet though. The wine will take on a lot of flavor when it infuses and ferments with the blackberries. 
  • Allulose is the best option for your sugar free sweetener here, but it is slightly less sweet than sugar. We use 1 & 1/3 cups to equate to 1 cup of sugar. Just keep this in mind if you decide to use another sweetener. You can use anything you want instead, but just be aware that it might crystallize if it's not allulose. 


Calories: 34kcal | Carbohydrates: 3g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 1mg | Potassium: 65mg | Fiber: 1g | Sugar: 1g | Vitamin A: 54IU | Vitamin C: 5mg | Calcium: 9mg | Iron: 1mg