Mars Bar Slice

Why You’ll Love This Recipe

This recipe is incredibly easy and requires only a handful of ingredients. There’s no baking involved, making it quick to prepare and ideal for beginners. The melted Mars bars create a gooey caramel-chocolate base that pairs perfectly with the crunch of cereal, while the chocolate topping adds a smooth finish. It’s a nostalgic, crowd-pleasing treat that works for parties, lunchboxes, or dessert trays.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
Mars bars (chopped)
unsalted butter
rice cereal (such as puffed rice or Rice Krispies)
milk chocolate (for topping)
vegetable oil or butter (optional, for smoothing chocolate)

Directions

Line a square baking pan with parchment paper.
Chop the Mars bars into small pieces and place them in a saucepan with the butter.
Melt over low heat, stirring continuously until smooth and fully combined.
Remove from heat and gently stir in the rice cereal until evenly coated.
Transfer the mixture into the prepared pan and press it down firmly into an even layer.
Melt the milk chocolate in a heatproof bowl, either over a double boiler or in the microwave in short bursts.
Stir in a small amount of oil or butter if needed for a smoother consistency.
Pour the melted chocolate over the base and spread evenly.
Refrigerate for 1–2 hours, or until set.
Once firm, slice into squares or bars.

Servings and timing

Servings: about 16 squares
Preparation time: 10 minutes
Chilling time: 1–2 hours
Total time: about 1 hour 10 minutes to 2 hours 10 minutes

Variations

Use dark or white chocolate for the topping instead of milk chocolate.
Add a layer of peanut butter between the base and chocolate topping.
Mix in crushed biscuits for extra texture.
Sprinkle chopped nuts or coconut on top before the chocolate sets.
Use different chocolate bars for a unique twist.

Storage/Reheating

Store the slice in an airtight container in the refrigerator for up to 1 week.
For longer storage, freeze pieces for up to 2 months and thaw before serving.
Keep chilled in warm weather to maintain structure.
Reheating is not necessary; serve chilled or slightly softened at room temperature.

FAQs

Can I use other chocolate bars instead of Mars bars?

Yes, similar caramel-filled chocolate bars can work well.

Why is my slice too hard?

It may have been over-chilled or the chocolate layer is too thick.

Can I make this without butter?

Butter helps with texture, but a substitute can be used if needed.

What cereal works best?

Puffed rice or Rice Krispies give the best crunch.

Can I add toppings?

Yes, nuts, coconut, or sprinkles work well.

How do I cut clean slices?

Use a sharp knife and let the slice sit briefly at room temperature before cutting.

Can I make it dairy free?

Yes, use dairy-free chocolate and alternatives for butter.

Does it need to stay refrigerated?

It’s best kept chilled, especially in warm climates.

Can I double the recipe?

Yes, just use a larger pan and adjust thickness accordingly.

Is this recipe kid-friendly?

Yes, it’s simple and fun to make with kids.

Conclusion

Mars Bar slice is a quick and indulgent treat that combines gooey caramel, crunchy cereal, and smooth chocolate in every bite. With minimal effort and maximum flavor, it’s a go-to recipe for anyone looking for an easy, crowd-pleasing dessert.

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