Prep Time: 20 minutes
Cook Time: 10 minutes
Setting/Chill Time: 1 hour 30 minutes
Total Time: 2 hours
Difficulty: Intermediate
Intensity: Medium (requires careful attention to temperatures)
Ingredients
For the “Crispy Peanut Butter Flake” Center:
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1 cup natural, no-sugar-added creamy peanut butter (well-stirred)
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⅓ cup powdered erythritol (or monk fruit blend)
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1 tsp pure vanilla extract
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¼ tsp salt
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1 ½ cups unsweetened crispy rice cereal (made from coconut or hemp; see note)
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2 tbsp salted butter
For the Chocolate Coating:
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1 ½ cups sugar-free dark chocolate chips (ensure they are keto-friendly, sweetened with stevia or monk fruit)
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2 tbsp coconut oil (refined for no coconut taste)
Equipment
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8×8 inch baking pan
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Parchment paper
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Medium saucepan
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Mixing bowls
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Spatula
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Double boiler or microwave-safe bowl
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Sharp knife
Instructions
Step 1: Prepare the Pan
Line an 8×8 inch baking pan with parchment paper, leaving overhang on two sides for easy removal. Lightly grease the paper. This is your mold for the candy bar slab.
Step 2: Create the Candy Base
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In a medium saucepan over low heat, combine the peanut butter, powdered sweetener, vanilla extract, salt, and butter. Heat gently, stirring constantly, until the mixture is completely smooth, liquid, and well combined—about 3-5 minutes. Do not let it boil.
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Critical Step: Remove the saucepan from the heat immediately. Stir in the unsweetened crispy rice cereal until every piece is thoroughly and evenly coated with the peanut butter mixture.
Step 3: Form the Slab
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Quickly transfer the warm mixture into your prepared parchment-lined pan.
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Using a spatula or your hands (lightly greased with butter or oil), press the mixture down firmly and evenly into a compact, uniform layer. Apply strong pressure—this ensures the bars hold together and creates that classic dense, flaky texture.
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Place the pan in the freezer for 30 minutes to set and firm up completely.
Step 4: Cut into Bars
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Once the slab is rock-solid, use the parchment paper to lift the entire block out of the pan onto a cutting board.
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Using a sharp knife, slice the block in half. Then cut each half into 6 even rectangles, for a total of 12 classic candy bar shapes.
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Place the cut bars on a parchment-lined tray and return to the freezer while you prepare the chocolate. They must be very cold for coating.
Step 5: Temper the Chocolate Coating
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Create a double boiler by placing a heatproof bowl over a small pot of simmering water (ensure the bowl does not touch the water). Add the sugar-free chocolate chips and coconut oil.
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Melt gently, stirring frequently, until completely smooth. Remove from heat. Alternatively, melt in a microwave-safe bowl in 20-second bursts, stirring between each, until smooth.
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Let the chocolate cool for 5 minutes. It should be fluid but not hot.
Step 6: Coat the Bars
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Remove the cold bars from the freezer. Using a fork or dipping tools, submerge one bar at a time into the melted chocolate, tapping the fork on the edge of the bowl to allow excess chocolate to drip off.
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Place the coated bar back onto the parchment-lined tray. Repeat with all bars.
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For a professional finish, you can use a second fork to drizzle a little extra chocolate in lines across the top.
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Immediately place the tray back into the freezer for 1 hour, or until the chocolate shell is completely hard and set.
Step 7: Final Set & Serve
Once fully set, transfer the bars to an airtight container. For best texture and to prevent melting, store in the refrigerator for up to 2 weeks or in the freezer for up to 3 months. Let sit at room temperature for 2-3 minutes before eating for the perfect snap.
Chef’s Notes & Tips
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Cereal Note: The key to the authentic texture is finding a truly crispy, unsweetened cereal. Look for brands made from coconut, hemp, or even “keto crisp” cereal. Pork rind puffs can be crushed and toasted as a savory alternative for a truly zero-carb option.
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Sweetener: Powdered sweetener is non-negotiable for a smooth texture. Granular will not dissolve properly. If you only have granulated, pulse it in a clean coffee grinder until powdery.
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Peanut Butter: Use a drippy, natural peanut butter with oil separation. Avoid stiff, commercial peanut butters with added sugars or hydrogenated oils.
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Success Secret: The “cooking” of the peanut butter mixture is minimal. You are just warming it to combine. Overheating will cause the oils to separate and create a greasy bar. Low and slow is the mantra.
Nutritional Information (Per Bar)
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Calories: 215
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Total Fat: 18g
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Saturated Fat: 7g
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Total Carbohydrates: 12g
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Dietary Fiber: 8g
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Sugars: <1g
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Sugar Alcohols (Erythritol): 8g
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Net Carbs: 4g
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Protein: 6g