This no-bake keto chocolate fudge is very easy to make; all you need are a handful of ingredients and a microwave for melting chocolate. It’s sugar free and low carb — just 0.5g net carbs for a generous bar of fudge.

This is a softer fudge that basically melts in your mouth. Perfect for chocolate lovers, whether you’re making this for the holidays or looking for a simple and healthy dessert.

keto chocolate fudge bar lifted up on a spatula


This recipe is pretty forgiving in terms of the exact proportions of the various ingredients, so it’s hard to mess up even if you’re not very precise. I’ve provided both weight and volume measurements for the main ingredients, and I recommend using the weight numbers if you have a food scale. It also makes cleanup easier with fewer measuring cups to wash.

I use confectioners swerve to sweeten the fudge, and you can replace it with any other powdered sweetener that measures the same as sugar. If you use a granulated sweetener, powder it using a small blender like the Nutribullet. If your sweetener doesn’t measure the same as sugar — for example, pure erythritol is only 70% as sweet — then you’ll need to alter the measurement for the same level of sweetness.

I use baking chocolate that’s unsweetened and 100% chocolate by the Bakers brand. You can check if your chocolate is unsweetened by looking at its nutrition label — the only ingredient listed should be chocolate. They usually come in bars, which I chop into small pieces for easier melting.

All of the ingredients are melted together to form a fudge mixture. You can use either the microwave or a double boiler on the stovetop. I prefer using the microwave because I’ve found that it’s less likely to overheat and seize the chocolate.

making low carb fudge before and after it has solidified


If you’re looking for more than plain chocolate fudge, you can add extra ingredients like coarse sea salt or finely chopped nuts. Sugar free chocolate chips would also be a delicious addition.

You can make an easy peanut butter fudge by combining equal parts salted butter and natural peanut butter with a sweetener added to taste. Melt everything together in the microwave until very smooth. Set the fudge in the freezer by itself, or pour it over a hardened chocolate fudge as an additional layer.

The no-bake simplicity of keto fudge and its variations reminds me of keto fat bomb recipes, for which I’ve made raspberry/strawberry, lemon, peanut butter, chocolate, and cookie dough flavors.

closeup view of sliced keto fudge


This recipe makes one 8×8-inch fudge brick, which I’ve divided into 16 servings or bars. Each bar is fairly large, and you may want to further cut each bar into 4 bite-sized cubes. It’s up to you.

They should be served cold, and leftovers can be stored in either the refrigerator or freezer, depending on how soft or hard you prefer fudge to be. I keep mine in the refrigerator.

keto fudge cut into bars on foil


Keto Fudge

This no-bake keto chocolate fudge is very easy to make; all you need are a handful of ingredients and a microwave for melting chocolate. It’s sugar free and low carb, just 0.5g net carbs for a generous bar of fudge.

 Prep Time 10 minutes
 Chilling 1 hour
 Servings 16 bars
 Calories 190 kcal


  • 8 ounces (1 cup) salted butter sliced
  • 7 ounces (about 1 1/2 cups) confectioners swerve or sweetener that measures like powdered sugar
  • 6 ounces unsweetened baking chocolate finely chopped
  • 3 ounces (about 6 tablespoons) heavy whipping cream
  • 2 teaspoons vanilla extract


  1. Prepare an 8×8-inch pan lined with foil.
  2. In a microwave-safe bowl, add all ingredients. Microwave for 30-second intervals until just melted, stirring in between. Mix well until silky smooth.
  3. Pour the chocolate mixture into the lined pan.
  4. Freeze until the fudge is set, about an hour. Lift up the foil to remove the fudge from the pan. Cut into 16 bars and serve cold. Cover and store leftovers in the refrigerator.

Nutrition Info

This recipe yields 0.5 g net carbs per serving (1 large bar or 1/16th of the recipe).

Nutrition Facts Per Serving
Calories 190
Total Fat 18g 28%
   Saturated Fat 12g 58%
   Trans Fat 0g
Cholesterol 36mg 12%
Sodium 100mg 4%
Total Carb 3g 1%
   Dietary Fiber 2.5g 9%
   Sugars 0g
Protein 2g
Vitamin A 10% · Vitamin C 0% · Calcium 0% · Iron 8%


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