Nutrition Facts for Mars bar slice

Mars Bar Slice

Image of Mars Bar Slice
Nutriscore Rating: 34/100

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!
2274
cal
16.1g
protein
256.9g
carbs
133.8g
fat

Nutrition Facts

1 serving (457.2g)
Calories
2274
% Daily Value*
Total Fat 133.8 g 172%
Saturated Fat 76.9 g 384%
Polyunsaturated Fat 0.0 g
Cholesterol 240 mg 80%
Sodium 881 mg 38%
Total Carbohydrate 256.9 g 93%
Dietary Fiber 7.7 g 28%
Total Sugars 168.1 g
Protein 16.1 g 32%
Vitamin D 2.4 mcg 12%
Calcium 271 mg 21%
Iron 16.4 mg 91%
Potassium 829 mg 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

44.8%%
2.8%%
52.4%%
Fat: 1204 cal (52.4%%)
Protein: 64 cal (2.8%%)
Carbs: 1027 cal (44.8%%)