Mars Bar Cornflake Cakes Recipe

Irresistible Mars Bar Cornflake Cakes Recipe for Sweet Cravings

Sweet dreams come alive with these mars bar cornflake cakes that blend childhood nostalgia and irresistible crunch.

Crispy cereal chunks meet gooey chocolate in a delightful no-bake treat.

Melted mars bars create a sticky caramel base that binds everything together.

Kids and adults alike will go crazy for these simple yet addictive little bites.

Minimal ingredients mean maximum fun in the kitchen.

Whip up this quick dessert and watch smiles spread faster than melted chocolate.

You’ll want to make a double batch – trust me.

Common Questions on Nigella Mars Bar Cornflake Cakes

  • Are Mars Bars essential for this recipe?

Yes, Mars Bars provide the signature caramel and chocolate flavor that makes these cornflake cakes unique and delicious.

  • Can I use a different type of cereal?

Rice Krispies work best, but you can substitute cornflakes or another crunchy cereal if needed. The texture might slightly change.

  • Do I need special equipment to make these?

You only need a saucepan, mixing bowl, spatula, and a rectangular baking tin. No fancy tools required.

  • How do I know when the Mars Bar mixture is ready to mix with cereal?

The mixture should be smooth and fully melted, with no lumps, and have a glossy, even consistency when stirred.

Why You’ll Crave Nigella Mars Bar Cornflake Cakes

  • Blast Chocolate Delight: These Mars Bar Cornflake Cakes deliver an explosion of rich, chocolatey goodness that kids and adults will absolutely love.
  • Master Simple Baking: No advanced culinary skills needed – even beginners can create these delectable treats with just a few basic steps and minimal kitchen equipment.
  • Quick Sweet Satisfaction: Requiring only a handful of ingredients and minimal preparation time, these no-bake cakes are perfect for sudden sugar cravings or last-minute dessert needs.
  • Fun Family Treat: Perfect for creating memorable moments together, these cakes invite everyone to join in the mixing and decorating process, making baking a playful shared experience.

What Goes Into Nigella Mars Bar Cornflake Cakes

Base Ingredients:
  • Mars Bars: Sweet chocolate bars that provide the primary flavor and binding for the cakes.
  • Butter: Helps melt the Mars bars and adds richness to the mixture.
  • Golden Syrup: Creates a smooth, sticky texture and enhances the sweetness.
Crunch Ingredients:
  • Rice Krispies, Cornflakes: Provide a satisfying crispy texture to the chocolate cakes.
Topping Ingredients:
  • Chocolate: Adds an extra layer of chocolate coating and helps the cakes set with a glossy finish.

How to Make Nigella Mars Bar Cornflake Cakes Easily

Step 1: Prepare the Melting Station

Set up a double boiler or a heatproof bowl over a pot of simmering water. This gentle heating method will help you melt the ingredients smoothly without burning.

Ingredients:
  • Mars bars
  • Butter
  • Golden syrup

Break the Mars bars into chunks, add butter and golden syrup. Stir continuously until the mixture becomes a glossy, smooth liquid with no lumps.

Step 2: Create the Crunchy Coating

Gradually fold in the cornflakes, ensuring each flake gets completely covered in the chocolatey mixture. Use a spatula to gently mix, preventing the cornflakes from breaking.

Ingredients:
  • Cornflakes

Step 3: Shape the Treats

Transfer the mixture into a lined baking pan. Use the back of a spoon or spatula to press down evenly, creating a compact layer that will hold together perfectly.

Step 4: Add Chocolate Topping

Melt additional chocolate in the same double boiler method. Pour over the cornflake base, using a palette knife to spread a smooth, even layer across the entire surface.

Step 5: Chill and Slice

Place the pan in the refrigerator for about 1 hour until the chocolate sets completely. Once firm, use a sharp knife to cut into neat squares or triangles for serving.

Tips for Great Nigella Mars Bar Cornflake Cakes

  • Prevent Sticking: Line your tin with parchment paper or use a non-stick baking tray to ensure easy removal of the cornflake cakes.
  • Control Melting Temperature: Use low, gentle heat when melting Mars bars and butter to avoid burning or separating the mixture.
  • Mix Evenly: Fold cornflakes or Rice Krispies slowly and carefully to guarantee each piece gets completely coated with the chocolate mixture.
  • Chocolate Topping Trick: Allow melted chocolate to cool slightly before pouring to create a smoother, more even layer on top of the cakes.
  • Storage Wisdom: Store these treats in an airtight container in the refrigerator for up to 5 days to maintain their crisp texture and rich flavor.

Different Takes on Nigella Mars Bar Cornflake Cakes

  • Vegan Chocolate Crunch: Replace Mars bars with dark chocolate and coconut oil. Use dairy-free chocolate topping and vegan-friendly cornflakes.
  • Nutty Caramel Squares: Swap Mars bars with caramel-flavored chocolate. Add chopped almonds or pecans for extra crunch and texture.
  • Gluten-Free Crispy Treats: Use gluten-free cornflakes or rice cereal. Ensure all chocolate and ingredients are certified gluten-free.
  • No-Bake Protein Bars: Mix in protein powder with melted chocolate. Use whey or plant-based protein for added nutrition and muscle-building benefits.

Great Pairings for Nigella Mars Bar Cornflake Cakes

  • Boost Chocolate Flavor: Pair with rich, dark roast coffee that complements the sweet chocolate notes and cuts through the richness of the Mars Bar Cornflake Cakes.
  • Contrast with Creamy Beverage: Enjoy with cold whole milk or a vanilla milkshake to balance the intense chocolate and caramel flavors, creating a smooth drinking experience.
  • Enhance Texture Combination: Serve alongside a scoop of vanilla bean ice cream, which provides a cool, creamy contrast to the crunchy cornflake base and adds another layer of sweetness.
  • Complementary Dessert Wine: Match with a sweet Pedro Ximénez sherry, whose raisin and caramel undertones beautifully harmonize with the Mars Bar's deep chocolate and toffee elements.

Storage Tips for Nigella Mars Bar Cornflake Cakes

  • Store in an airtight container in the fridge for up to 5 days. Separate layers with parchment paper to prevent sticking.
  • Wrap individual pieces tightly in plastic wrap, then place in a freezer bag. Freeze for up to 3 months for best quality.
  • Keep in a sealed container away from direct sunlight and heat. Consume within 2-3 days for optimal taste and texture.
  • Let frozen treats thaw in the refrigerator overnight. For a slightly warm texture, microwave individual pieces for 10-15 seconds on low power.
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Mars Bar Cornflake Cakes Recipe

Mars Bar Cornflake Cakes Recipe


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4.7 from 27 reviews

  • Total Time: 20 minutes
  • Yield: 4 1x

Description

Chocolate-loving souls will adore these Mars Bar Cornflake Cakes, a nostalgic British treat blending sweet caramel and crispy cereal. Sweet indulgence meets childhood memories, enticing you to savor each delightful, no-bake morsel of chocolatey goodness.


Ingredients

Scale

Main Ingredients:

  • 3 Mars bars
  • 34 cups (8.5 cups) Rice Krispies
  • 200g (7 ounces) milk chocolate, melted

Binding/Melting Ingredients:

  • 85g (3 ounces) butter
  • 2 tablespoons golden syrup

Instructions

  1. Create a double boiler by placing a heatproof bowl over a pot of simmering water, ensuring the bottom doesn’t touch the water.
  2. Gradually melt Mars bars, butter, and golden syrup together, stirring continuously until smooth and fully combined at low temperature.
  3. Remove the melted mixture from heat and gently fold in cornflakes, ensuring each flake is thoroughly coated with the chocolate-caramel mixture.
  4. Transfer the mixture into a pre-lined rectangular baking tin, using a spatula to spread evenly and press down firmly to create a compact layer.
  5. Melt additional chocolate in the same double boiler method, then carefully pour over the cornflake base, using a palette knife to create an even, glossy surface.
  6. Refrigerate for approximately 30-45 minutes until the chocolate sets completely and becomes firm to the touch.
  7. Remove from refrigerator and slice into uniform squares using a sharp knife, wiping the blade clean between cuts for precise edges.

Notes

  • Use a double boiler or heatproof bowl to melt chocolate and Mars bars gently, preventing burning or separating.
  • Choose crispy, fresh cornflakes for maximum crunch and texture in the final treat.
  • Adjust sweetness by using dark or milk chocolate on top, depending on personal preference.
  • Line the tin with parchment paper for easy removal and clean cutting of squares.
  • Prep Time: 10 minutes
  • Cook Time: 10 minutes
  • Category: Snacks, Desserts
  • Method: Melting
  • Cuisine: British

Nutrition

  • Serving Size: 4
  • Calories: 399 kcal
  • Sugar: 34 g
  • Sodium: 70 mg
  • Fat: 18 g
  • Saturated Fat: 11 g
  • Unsaturated Fat: 6 g
  • Trans Fat: 0.2 g
  • Carbohydrates: 52 g
  • Fiber: 1.5 g
  • Protein: 3.5 g
  • Cholesterol: 30 mg
Michael Thompson

Michael Thompson

Founder & Recipe Developer

Expertise

  • Creating single-serving recipes tailored for individuals, small households, or meal preppers
  • Culinary arts with a focus on clean plating and natural styling for food photography
  • Working with fermented ingredients and dairy-based cooking techniques
  • Designing seasonal menus that use fresh, locally sourced produce

Education

Cascade Culinary Institute – Bend, OR

  • Program: Culinary Arts Certificate
  • Focus: Gained hands-on experience in professional kitchens, learning advanced recipe development, seasonal ingredient sourcing, and simple, beautiful food presentation.

ServSafe Food Handler Certification – Portland, OR

  • Program: Food Safety Certification
    Focus: Certified in core food safety and hygiene principles for both home and professional kitchens, with emphasis on ingredient handling, kitchen cleanliness, and safe preparation methods.

Mike’s kitchen journey began with a single goal: to make everyday meals feel like something worth celebrating.
After earning his Certificate in Culinary Arts from Cascade Culinary Institute, he spent years working with local farmers and small kitchens across Oregon, learning the beauty of seasonal, small-batch cooking.
Mike’s approach is simple, cook with what’s fresh, keep it approachable, and always leave room for a little creativity. When he’s not testing yogurt marinades or designing single-serving meals, you’ll find him hiking trails or hunting down the best berries at local markets.

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