Keto Butterfinger Candy Bars (Low-Carb, No Sugar)

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Keto Butterfinger Candy Bars (Low-Carb, No Sugar)

Texture goal: crunchy, flaky peanut layers + snappy chocolate shell
Net carbs: ~2–3g per bar (depends on sweetener & chocolate)

 Ingredients

Peanut Butter Crunch Center

  • 1 cup natural peanut butter (smooth, unsweetened)

  • ½ cup powdered erythritol or allulose
    (allulose gives a better crunch & less cooling effect)

  • 2 tbsp unsalted butter

  • 1 tsp vanilla extract

  • ¼ tsp salt (optional, but very Butterfinger-authentic)

  • ½ cup unflavored whey protein isolate
    (this is key for the flaky/crunchy texture — don’t skip)

  • ¼ cup peanut flour (or finely ground peanuts)

Chocolate Coating

  • 1½ cups sugar-free chocolate chips (Lily’s, ChocZero, or homemade)

  • 1 tsp coconut oil (for shine + snap)


 Step-by-Step Instructions

 Make the Peanut Crunch Base

  1. In a saucepan over low heat, melt:

    • peanut butter

    • butter
      Stir until fully smooth — don’t let it boil.

  2. Remove from heat and mix in:

    • powdered sweetener

    • vanilla

    • salt

  3. Stir in whey protein isolate and peanut flour slowly.
    The mixture will:

    • thicken quickly

    • start to resemble soft dough

Texture check: It should be moldable but not sticky.
If too soft → add 1–2 tbsp more protein powder
If too dry → add 1 tsp melted butter


 Create the Butterfinger Flakes

This is the magic step

  1. Spread the mixture thinly (¼ inch) onto parchment paper.

  2. Chill in the freezer 10–15 minutes until firm but not frozen.

  3. Remove and fold + press repeatedly:

    • fold in half

    • flatten

    • repeat 5–6 times

This creates layers, just like real Butterfingers.


 Shape the Bars

  • Press into a parchment-lined loaf pan OR

  • Shape individual bars by hand (classic candy bar size)

Freeze again for 20–30 minutes until solid.


 Chocolate Coating

  1. Melt chocolate chips + coconut oil gently:

    • microwave in 20-second bursts

    • or use a double boiler

  2. Dip each frozen bar:

    • fully coat

    • tap off excess

  3. Place back on parchment.


 Set & Store

  • Chill in fridge 15 minutes until chocolate snaps

  • Store:

    • fridge → firm crunch

    • freezer → ultra-crispy (very Butterfinger vibes)


 Pro Tips (Highly Recommended)

  • Allulose > erythritol for best crunch & zero cooling

  • Want extra snap? Add ½ tsp sunflower lecithin

  • For peanut-butter-cup style: skip folding step

  • For extra flaky: fold the dough while slightly warm


 Approx Macros (per bar, makes ~10)

  • Calories: ~180

  • Fat: 15g

  • Protein: 6g

  • Net carbs: 2–3g

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