Keto Butterfinger Candy Bars

Prep Time: 25 minutes
Cook Time: 10 minutes
Chilling Time: 45 minutes
Total Time: 1 hour 20 minutes
Servings: 12 bars
Recipe Intensity: Advanced (Requires careful temperature control and quick handling of sugar-free caramel syrup)
Flavor Intensity: High (Rich roasted peanut butter, deep buttery notes, and decadent chocolate)

Ingredients

6 oz (1 1/3 cups) Roasted, Salted Peanuts: Finely ground into a thick paste (or use smooth, natural no-sugar-added peanut butter).
1 tbsp Powdered Monk Fruit/Erythritol Blend: For a subtle sweetness in the base.
1/2 tsp Powdered Stevia: Adjust to taste preferences.
1 tsp Pure Vanilla Extract
1 tbsp Unflavored Whey Protein Isolate: Helps bind the core and mimics structural integrity.

1 cup Allulose: The secret keto sweetener that caramelizes and hardens properly without re-crystallizing into powder.
1/8 tsp Baking Soda: Creates micro-bubbles for that signature flaky, airy crunch.

If using whole roasted salted peanuts, place them into a food processor and pulse until they form a smooth, thick dough. Be careful not to over-process, or the natural oils will separate too much.
Transfer the peanut butter mixture to a bowl and mix in the powdered monk fruit/erythritol blend, powdered stevia, vanilla extract, and whey protein isolate until thoroughly incorporated.
Shape the dough on a piece of parchment paper into a compact rectangle measuring approximately 3×7 inches. Set aside.

Line a baking sheet or counter space with a silicone baking mat or greased parchment paper.
Measure the allulose into a dry, heavy-bottomed saucepan over medium-low heat.
Stir continuously until the allulose completely melts. Once melted, swirl the pan gently on the heat until the liquid turns a rich amber caramel color and reaches roughly 350°F to 360°F on a candy thermometer.
Immediately remove the pan from the heat and vigorously stir in the baking soda. The mixture will foam up rapidly.

Immediately pour the hot foaming caramel over your prepared peanut butter dough rectangle.
Working quickly before the sugar cools, pull the edges of the hardened/hardening sweetener up and over the peanut butter dough, sealing it inside.
Roll and fold the composite dough (similar to making laminated pastry or map folding: fold one-third over the center, then the other third over top) to trap thin sheets of crisp caramel throughout the peanut butter.
Press and roll the final mixture into a neat 7×5 inch rectangle. As it begins to firm up, use a bench scraper or sharp knife to score and cut it into 12 individual candy bars. Allow them to cool completely.

In a microwave-safe bowl, combine your keto chocolate chips and coconut oil. Microwave in 30-second intervals, stirring in between, until completely melted and smooth.
Using a fork or dipping tool, submerge each cooled peanut butter bar into the melted chocolate, letting any excess drip off.
Place the coated bars onto a clean parchment-lined baking sheet.
Transfer the baking sheet to the refrigerator for 20 to 30 minutes until the chocolate shell is completely hardened.

Storage: Keep your Keto Butterfinger Bars stored in an airtight container in the refrigerator for up to 3 weeks, or freeze them for up to 2 months. Storing them cold ensures the center maintains its iconic crisp bite.
Sweetener Note: Stick strictly to allulose for the candy layer. Standard erythritol or xylitol will recrystallize back into a grainy texture as it cools, whereas allulose behaves precisely like real sugar when heated to high temperatures.

Estimated values per single bar (assuming 12 equal servings):

Calories: 145 kcal
Total Fat: 11.5 g
Saturated Fat: 4.2 g
Sodium: 65 mg
Total Carbohydrates: 12.0 g
Dietary Fiber: 3.5 g
Net Carbs: 2.5 g (Note: Majority of carbs originate from allulose, which is non-glycemic and does not impact blood sugar for most individuals).
Protein: 4.0 g