There’s something incredibly satisfying about a piece of fudge—smooth, creamy, and packed with rich flavor. But traditional fudge is often loaded with sugar, making it off-limits for a keto lifestyle. That’s why we love this Peanut Butter Collagen Fudge—it’s an easy, no-bake, nutrient-packed alternative that keeps things indulgent without the sugar crash.
This recipe combines creamy peanut butter, collagen peptides, and coconut oil to create a silky texture with just the right amount of richness. Not only does it satisfy those sweet cravings, but it also delivers a boost of healthy fats and protein to keep us energized. Plus, since it’s completely sugar-free and naturally sweetened with monk fruit or erythritol, we can enjoy it guilt-free.
Perfect for meal prep, a quick snack, or an after-dinner treat, this Peanut Butter Collagen Fudge will quickly become a staple in any keto kitchen.
Peanut Butter Collagen Keto Fudge
A No-Bake, High-Protein Keto Treat That’s Rich, Creamy, and Satisfying!
This Peanut Butter Collagen Fudge is a nutrient-rich, no-bake dessert packed with healthy fats, protein, and a deliciously creamy texture. Made with peanut butter, collagen peptides, and coconut oil, this keto-friendly treat melts in your mouth while providing lasting energy.

Ingredients
For the Fudge:
For Topping (Optional):
Instructions
Make the Fudge Mixture:
-
In a medium bowl, whisk together peanut butter, melted coconut oil, collagen peptides, powdered sweetener, vanilla extract, and sea salt until smooth and well combined.
-
Taste and adjust sweetness if needed.
Assemble & Chill:
-
Line an 8x8-inch dish with parchment paper and pour in the fudge mixture, spreading it evenly.
-
If using toppings, sprinkle chopped nuts, a chocolate drizzle, or flaky sea salt over the top.
-
Place in the freezer for at least 2 hours until firm.
Slice & Serve:
-
Once fully set, remove from the dish and cut into 16 squares.
-
Store in an airtight container in the refrigerator for up to 2 weeks or in the freezer for longer storage.
Nutrition Facts
Servings: 16 ServingCalories:180kcalTotal Fat:16gSaturated Fat: 10gTotal Carbohydrate:4gDietary Fiber: 1gSugars: 1gProtein:6g
Note
Substitutions & Variations
- Nut-Free: Swap peanut butter for sunflower seed butter.
- Extra Chocolatey: Add 2 tbsp cocoa powder to the fudge mixture.
- Sweeter Version: Increase the monk fruit sweetener to 1/3 cup.
- Dairy-Free: This recipe is naturally dairy-free!