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Guilt-Free Indulgence: Lower-Fat Mars Bar (Caramel) Slice

I remember my first taste of a Mars Bar slice like it was yesterday. I was at a school bake sale, and the gooey, chocolatey, caramelly square practically screamed my name from the dessert table. The sugar rush was intense, the flavor unforgettable, and the guilt… well, that came later. Since then, I’ve been on a mission to recreate that iconic treat without the associated indulgence. This recipe, a lower-fat version of the classic Mars Bar slice, is the result of years of experimenting, aiming to capture that same blissful experience, but with a significantly lighter touch.

Recipe Overview

Prep Time: 20 minutes
Cook Time: 20 minutes
Total Time: 40 minutes
Servings: 24 slices
Yields: 1 slice
Dietary Type: Lower Fat

Ingredients

For the Base:

1 cup Marie biscuits, crushed
1 cup self-raising flour
1 cup brown sugar
125g low-fat margarine, melted

For the Caramel Centre:

2 tablespoons golden syrup
30g low-fat margarine, melted
400g low-fat sweetened condensed milk

For the Choccy Top:

200g dark cooking chocolate
60g Copha (vegetable shortening)

Equipment Needed

Slice baking tray
Lining paper or grease for the tray
Mixing bowls
Saucepan
Spatula
Measuring cups and spoons

Instructions

Preheat your oven to 180°C (350°F).
Prepare the Base: In a mixing bowl, combine the crushed Marie biscuits, self-raising flour, and brown sugar.
Melt the margarine in a microwave-safe bowl or in a small saucepan over low heat. Pour the melted low-fat margarine into the dry ingredients.
Mix well until the ingredients are thoroughly combined and form a crumbly mixture.
Line a slice baking tray with baking paper, ensuring the paper overhangs the sides for easy removal later. Alternatively, you can thoroughly grease the baking tray.
Press the biscuit base mixture evenly into the bottom of the prepared baking tray. Use the back of a spoon or a flat-bottomed measuring cup to firmly compact the base.
Bake the base in the preheated oven for 10 minutes. This will help set the base and prevent it from being too crumbly.
Prepare the Caramel Centre: While the base is baking, combine the golden syrup, melted low-fat margarine, and low-fat sweetened condensed milk in a saucepan.
Gently heat the caramel mixture over low heat, stirring continually to prevent it from burning. This is crucial! The mixture should thicken gradually.
Cook until the caramel is thickened enough to coat the back of a spoon. This usually takes about 5-7 minutes. Be patient and keep stirring!
Pour the prepared caramel mixture evenly over the baked biscuit base.
Return the slice to the oven and bake for another 10 minutes. This will help the caramel set slightly.
Prepare the Choccy Top: While the caramel layer is baking, combine the dark cooking chocolate and Copha in a saucepan.
Gently melt the chocolate and Copha over low heat, stirring continually until smooth and glossy. Be careful not to overheat the chocolate, as it can seize and become grainy. A double boiler method can help prevent this.
Pour the melted chocolate mixture evenly over the caramel layer.
Refrigerate the slice for at least 2 hours, or until the chocolate topping is firm and the slice is set.
Cut the slice into squares using a sharp knife. For cleaner cuts, run the knife under hot water and wipe it dry between slices.

Expert Tips & Tricks

Preventing a Soggy Base: Ensure the base is thoroughly pressed and compacted before baking. This will create a more stable foundation for the caramel layer.
Caramel Consistency is Key: The caramel needs to be thick enough to hold its shape but not so thick that it’s difficult to spread. Watch it carefully and stir constantly. If it seems too thin after the initial heating, continue to cook it for a few more minutes, stirring continuously.
Chocolate Tempering (Optional): For a glossy, snap-worthy chocolate topping, temper the chocolate. This involves carefully controlling the temperature of the melting chocolate. There are many guides online explaining this technique.
Softening Copha: To make Copha easier to work with, cut it into small pieces before melting.
Lining for Easy Removal: Using overhanging baking paper is the easiest way to remove the set slice from the tray. This prevents breakage and allows for neat cutting.

Serving & Storage Suggestions

Serve the Mars Bar slice chilled or at room temperature. Cut into squares of your desired size. These slices are perfect as an afternoon treat, a dessert with coffee, or as part of a sweet platter.

Store the slices in an airtight container in the refrigerator for up to 5 days. They can also be frozen for up to 2 months. To freeze, wrap individual slices in plastic wrap before placing them in a freezer-safe container. Thaw in the refrigerator before serving. Room temperature storage is not recommended due to the perishable ingredients.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value*
Calories	135 kcal	7%
Total Fat	8.3 g	12%
Saturated Fat	5.8 g	29%
Cholesterol	0 mg	0%
Sodium	73.5 mg	3%
Total Carbohydrate	17.5 g	5%
Dietary Fiber	2 g	7%
Sugars	9.4 g	37%
Protein	1.9 g	3%

*Percent Daily Values are based on a 2,000 calorie diet.

Variations & Substitutions

Gluten-Free Option: Substitute the self-raising flour with a gluten-free self-raising flour blend. Ensure the Marie biscuits are also gluten-free.
Different Chocolate: Feel free to experiment with different types of chocolate for the topping. Milk chocolate will result in a sweeter slice, while a higher percentage dark chocolate will add a more intense flavor.
Nutty Base: Add a handful of chopped nuts (such as almonds, walnuts, or pecans) to the biscuit base mixture for added texture and flavor.
Spice it Up: A pinch of cinnamon or nutmeg in the base can add a warm, comforting flavor.

FAQs (Frequently Asked Questions)

Q: Why is Copha used in the chocolate topping?
A: Copha helps to create a smooth, glossy chocolate topping that sets firmly. It provides a good snap when you bite into the slice.

Q: Can I use regular sweetened condensed milk instead of low-fat?
A: Yes, you can. However, this will increase the fat content of the slice.

Q: My caramel is too runny. What did I do wrong?
A: The caramel may not have been cooked for long enough. Continue to cook it over low heat, stirring constantly, until it thickens to the desired consistency. Be patient!

Q: How do I prevent the chocolate from cracking when I cut the slice?
A: Ensure the slice is thoroughly chilled before cutting. Using a warm, sharp knife and wiping it clean between slices will also help.

Q: Can I freeze this slice?
A: Yes, you can freeze individual slices wrapped tightly in plastic wrap for up to 2 months. Thaw in the refrigerator before serving.

Final Thoughts

This lower-fat Mars Bar slice recipe is a testament to the fact that you don’t have to sacrifice flavor to enjoy a slightly healthier treat. It’s a delightful way to satisfy your sweet cravings without the heavy guilt. I encourage you to give this recipe a try and share your creations and feedback. Perhaps pair it with a cup of freshly brewed coffee for the perfect afternoon indulgence! Enjoy!

Mars Bar (Caramel) Slice – Lower in Fat Recipe