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Paul Scally
By Paul Scally

Peanut Butter Chocolate Sludge Brick

5 steps
Prep:5min
It ain't stupid if it works. 3 ingredient, no bake, vegan, sugar free, and gluten free peanut butter chocolate protein bar? This "sludge brick" is just a swirling of cocoa powder and powdered peanut butter with sugar free syrup for a dead simple bar with 14 g of protein in 180 calories.
Updated at: Fri, 24 Jul 2026 19:52:13 GMT

Nutrition balance score

Great
Glycemic Index
25
Low
Glycemic Load
7
Low

Nutrition per serving

Calories185.1 kcal (9%)
Total Fat5.6 g (8%)
Carbs29.3 g (11%)
Sugars2.4 g (3%)
Protein14.3 g (29%)
Sodium361.9 mg (18%)
Fiber8.5 g (30%)
% Daily Values based on a 2,000 calorie diet

Instructions

Step 1
In a small bowl, mix together cocoa powder and sugar free syrup with a silicone spatula, and set aside.
In a small bowl, mix together cocoa powder and sugar free syrup with a silicone spatula, and set aside.
Cocoa powderCocoa powder20g
Sugar free syrupSugar free syrup39g
Step 2
In a small bowl, mix together powdered peanut butter and sugar free syrup with a silicone spatula, and set aside.
In a small bowl, mix together powdered peanut butter and sugar free syrup with a silicone spatula, and set aside.
Powdered peanut butterPowdered peanut butter24g
Sugar free syrupSugar free syrup41g
Step 3
Line a small container with parchment paper. Add the chocolate mixture to the bottom, then the peanut butter on top. Lightly swirl together. Optionally top with flaky salt.
Line a small container with parchment paper. Add the chocolate mixture to the bottom, then the peanut butter on top. Lightly swirl together. Optionally top with flaky salt.
Step 4
Freeze for at least 2 hours before eating.
Freeze for at least 2 hours before eating.
Step 5
This whole bar has about as much caffeine as half a cup of coffee, so don't have it too late in the day. Alternatively, if you used carob instead of cocoa, it will be less bitter and caffeine free.
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