Nutrition Facts for Mars bar slice

Mars Bar Slice

Indulge in the ultimate no-bake treat with this irresistible Mars Bar Slice recipe—a decadent cross between a candy bar and a crispy dessert! Made with gooey melted Mars Bars, buttery golden syrup, and crunchy Rice Krispies, this easy recipe comes together in just 15 minutes of prep time. Topped with a luxurious layer of milk chocolate (with an optional touch of dark chocolate for a flavor contrast), this slice offers a perfect balance of sweetness and texture in every bite. Ideal for parties, afternoon snacks, or a quick dessert fix, these slices can be made ahead and stored for up to a week. Whether you're a chocolate lover or a fan of stunning no-bake recipes, this Mars Bar Slice is guaranteed to satisfy your cravings!

Nutriscore Rating: 34/100
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Image of Mars Bar Slice
Prep Time:15 mins
Cook Time:5 mins
Total Time:20 mins
Servings: 12

Ingredients

  • 4 bars (47g each) Mars Bars
  • 100 g Unsalted Butter
  • 2 tablespoons Golden Syrup
  • 3 cups Rice Krispies (or puffed rice cereal)
  • 200 g Milk Chocolate
  • 50 g Dark Chocolate (optional, for contrast)

Directions

Step 1

Line a standard 8-inch (20cm) square baking pan with parchment paper, leaving some overhang for easy removal later.

Step 2

Chop the Mars Bars into small pieces and combine them with the butter and golden syrup in a large heatproof bowl.

Step 3

Melt the mixture over low heat, stirring constantly, or microwave in 30-second intervals, stirring after each, until smooth and fully combined.

Step 4

Gently fold in the Rice Krispies until evenly coated with the melted mixture.

Step 5

Press the mixture evenly into the prepared pan, using the back of a spoon or your hands to pack it down firmly.

Step 6

Melt the milk chocolate and dark chocolate together in a heatproof bowl set over a pot of simmering water, or microwave in short bursts, stirring frequently.

Step 7

Pour the melted chocolate over the rice mixture in the pan, smoothing it out into an even layer.

Step 8

Refrigerate for 1-2 hours, or until the chocolate topping is set and firm.

Step 9

Remove the slice from the pan using the parchment overhang, and cut it into 12 equal squares or bars with a sharp knife.

Step 10

Store in an airtight container in the refrigerator for up to one week. Serve and enjoy!

Nutrition Facts

Serving size 457.2 grams (457.2g)
Amount per serving % Daily Value*
Calories 2274
Total Fat 133.80g 172%
Saturated Fat 76.90g 385%
Polyunsaturated Fat NaNg
Cholesterol 240mg 80%
Sodium 881mg 38%
Total Carbohydrate 256.90g 93%
Dietary Fiber 7.70g 28%
Total Sugars 168.10g
Protein 16.10g 32%
Vitamin D 96IU 480%
Calcium 271mg 21%
Iron 16mg 91%
Potassium 829mg 18%
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 52.4%
Protein: 2.8%
Carbs: 44.8%