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
-
In a saucepan over low heat, melt:
-
peanut butter
-
butter
Stir until fully smooth — don’t let it boil.
-
-
Remove from heat and mix in:
-
powdered sweetener
-
vanilla
-
salt
-
-
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
-
Spread the mixture thinly (¼ inch) onto parchment paper.
-
Chill in the freezer 10–15 minutes until firm but not frozen.
-
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
-
Melt chocolate chips + coconut oil gently:
-
microwave in 20-second bursts
-
or use a double boiler
-
-
Dip each frozen bar:
-
fully coat
-
tap off excess
-
-
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