Nutrition Facts for Mars bar slice
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Mars Bar Slice

Image of Mars Bar Slice
Nutriscore Rating: 36/100

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!

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Recipe Information

⏱️
Prep Time
15 min
🔥
Cook Time
5 min
🕐
Total Time
20 min
👥
Servings
12 servings
📊
Difficulty
Medium

🥘 Ingredients

6 items
  • 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)
💡
Pro Tip: Read through all ingredients before starting to cook!

📝 Instructions

10 steps
1

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

2

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

3

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

4

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

5

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

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.

7

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

8

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

9

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

10

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

Cooking Tip: Take your time with each step for the best results!
282
cal
2.8g
protein
32.0g
carbs
15.9g
fat

Nutrition Facts

1 serving (55.6g)
Calories
282
% Daily Value*
Total Fat 15.9 g 20%
Saturated Fat 9.6 g 48%
Polyunsaturated Fat 0.0 g
Cholesterol 24 mg 8%
Sodium 81 mg 4%
Total Carbohydrate 32.0 g 12%
Dietary Fiber 1.2 g 4%
Total Sugars 22.2 g
Protein 2.8 g 6%
Vitamin D 0.6 mcg 3%
Calcium 57 mg 4%
Iron 2.2 mg 12%
Potassium 131 mg 3%

*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

45.3%%
4.0%%
50.7%%
Fat: 1714 cal (50.7%%)
Protein: 136 cal (4.0%%)
Carbs: 1532 cal (45.3%%)