Mars Bar Squares
What do you get when you melt together chocolate bars and mix them with Rice Krispies? You get delightful Mars Bar Squares! These no-bake treats are perfect for any occasion, whether it’s a family gathering, a birthday party, or just a sweet craving at home. With their gooey texture and crunchy bite, these squares are topped with smooth milk chocolate, making them absolutely irresistible. Enjoy these easy-to-make treats that will satisfy your sweet tooth and impress your friends!
Why You’ll Love This Recipe
- Quick and Easy: This recipe requires minimal ingredients and can be prepared in just 10 minutes.
- No Baking Required: Enjoy the convenience of a no-bake dessert that sets at room temperature.
- Crowd-Pleaser: With their rich chocolate flavor and crunchy texture, Mars Bar Squares are sure to delight everyone.
- Versatile Treats: Perfect for parties, school lunches, or simply as an afternoon snack.
- Customizable: Feel free to add your favorite nuts or dried fruits for an extra twist.
Tools and Preparation
Before diving into this delicious recipe, gather your tools for a smooth cooking experience. Having everything ready will make the process efficient and enjoyable.
Essential Tools and Equipment
- 8×8 inch (20×20 cm) square baking pan
- Large saucepan
- Heatproof bowl
- Microwave
Importance of Each Tool
- Baking Pan: A square baking pan ensures even spreading and helps the squares set perfectly.
- Large Saucepan: Ideal for melting butter and Mars bars together without burning them.
- Heatproof Bowl: Necessary for melting chocolate safely in the microwave.
Ingredients
For the Base
- 1/2 cup unsalted butter
- 4 53 gram Mars bars (chopped)
- 3 cups Rice Krispies (aka Rice Bubbles)
For the Topping
- 1 cup milk chocolate chips (or chopped milk chocolate)
How to Make Mars Bar Squares
Step 1: Prepare the Baking Pan
Lightly grease an 8×8 inch (20×20 cm) square baking pan. This will prevent the squares from sticking when set.
Step 2: Melt Butter
Add the unsalted butter to a large saucepan. Gently melt the butter over low heat until fully liquefied.
Step 3: Add Mars Bars
Add the chopped Mars bars to the melted butter. Stir gently as they begin to melt together.
Step 4: Stir Until Smooth
Continuously stir the mixture until it is completely smooth. If it starts to separate, remove from heat and whisk until combined.
Step 5: Incorporate Rice Krispies
Once melted, turn off the burner. Carefully fold in the Rice Krispies, ensuring they are evenly coated with the chocolate mixture.
Step 6: Press into Pan
Spoon the mixture into the prepared pan. Gently press it down using a spatula or greased hands for an even layer.
Step 7: Melt Chocolate Topping
In a heatproof bowl, add your milk chocolate chips. Microwave on medium power in 45-second intervals, stirring between each until melted and smooth.
Step 8: Spread Chocolate Over Base
Spread the melted chocolate over the Rice Krispie layer in the pan. Allow it to sit at room temperature for about 2 hours until set before slicing into squares.
Enjoy your homemade Mars Bar Squares! They make a delightful treat for any day of the week!
How to Serve Mars Bar Squares
Mars Bar Squares are a delightful treat that can be enjoyed in various ways. Whether you’re hosting a party or just treating yourself, these squares can be served in styles to impress your guests or simply to satisfy your sweet tooth.
With Fresh Fruit
- Berries – Serve with a side of mixed berries for a refreshing contrast.
- Banana Slices – Add banana slices on top for extra creaminess.
As Dessert Bars
- Coffee Pairing – Enjoy them alongside a cup of freshly brewed coffee for the perfect afternoon snack.
- Ice Cream Side – Serve with a scoop of vanilla ice cream for an indulgent dessert experience.
For Parties
- Platter Presentation – Cut into bite-sized pieces and arrange on a platter for easy sharing.
- Decorative Toppings – Drizzle with caramel sauce or sprinkle extra chocolate chips on top before serving.
With Beverages
- Milkshake – Pair with a chocolate milkshake for a sweet treat combo.
- Hot Chocolate – Enjoy alongside a warm cup of hot chocolate during colder months.

How to Perfect Mars Bar Squares
To ensure your Mars Bar Squares turn out perfectly every time, follow these handy tips. These suggestions will help achieve the ideal texture and flavor.
- Use fresh Mars bars – Make sure the Mars bars are fresh to get that gooey melt-in-your-mouth texture.
- Melt slowly – Melt the butter and chocolate over low heat to prevent burning and achieve a smooth mixture.
- Press firmly – When spreading the mixture in the pan, press it down firmly but gently to create dense squares that hold together well.
- Let them cool completely – Allow the squares to cool at room temperature until fully set before cutting; this ensures clean edges.
- Store properly – Keep leftovers in an airtight container at room temperature or refrigerate for longer shelf life.
Best Side Dishes for Mars Bar Squares
Mars Bar Squares can be complemented with several delicious side dishes. Here are some great options to consider:
- Fresh Fruit Salad – A light fruit salad adds freshness and balances the sweetness of the squares.
- Vanilla Yogurt – Creamy yogurt provides a tangy contrast, enhancing the overall dessert experience.
- Chocolate Dipped Strawberries – These sweet treats make for an elegant pairing with Mars Bar Squares.
- Cheese Platter – A selection of cheeses can offer savory notes that pair nicely with sweet flavors.
- Nut Mix – A crunchy nut mix can provide some texture contrast and enhance snacking enjoyment.
- Coffee Cake – The rich flavors of coffee cake complement the chocolatey goodness of Mars Bar Squares beautifully.
- Mint Tea – A refreshing mint tea helps cleanse the palate between bites of these rich squares.
- Caramel Sauce Dip – For those who love extra sweetness, serve with caramel sauce for dipping!
Common Mistakes to Avoid
Making Mars Bar Squares can be simple, but small mistakes can lead to disappointing results. Here are some common pitfalls to watch out for:
- Using cold ingredients: Cold butter or chocolate can result in uneven melting. Always ensure your butter is at room temperature before starting.
- Overheating the chocolate: If you heat the chocolate too quickly, it can seize up. Use low heat and stir often to maintain a smooth consistency.
- Not pressing firmly enough: Failing to press down the mixture in the pan can lead to crumbly squares. Use a spatula or your hands to pack it down well.
- Skipping the refrigeration step: Allowing the squares to set at room temperature may not harden them enough. Be patient and let them cool in the fridge for optimal firmness.
- Not greasing the pan: Neglecting to grease the baking pan can make it difficult to remove your squares later. A light coat of butter or cooking spray prevents sticking.

Storage & Reheating Instructions
Refrigerator Storage
- Store Mars Bar Squares in an airtight container.
- They will last up to one week in the refrigerator.
Freezing Mars Bar Squares
- Wrap individual squares tightly in plastic wrap before placing them in a freezer-safe container.
- They can be frozen for up to three months.
Reheating Mars Bar Squares
- Oven: Preheat your oven to 350°F (175°C) and warm them for about 5-10 minutes until slightly softened.
- Microwave: Heat on medium power for 15-20 seconds at a time, checking frequently to avoid melting completely.
- Stovetop: Use a non-stick skillet over low heat, warm gently while stirring until just soft.
Frequently Asked Questions
If you have questions about making Mars Bar Squares, you’ll find answers here.
What are Mars Bar Squares?
Mars Bar Squares are delicious no-bake treats made from melted Mars bars combined with Rice Krispies, topped with milk chocolate.
How long do Mars Bar Squares last?
When stored properly, these squares can last about one week in the refrigerator and up to three months if frozen.
Can I customize my Mars Bar Squares?
Absolutely! You can add nuts, dried fruit, or different types of chocolate for variety and extra flavor.
Are Mars Bar Squares suitable for kids?
Yes! These treats are simple and fun for kids to help make, but remember they contain chocolate and should be enjoyed as an occasional treat.
Final Thoughts
Mars Bar Squares are an irresistible treat that combines gooey sweetness with crunchy texture. Their no-bake nature makes them easy to prepare, perfect for any occasion! Feel free to customize by adding your favorite ingredients or toppings. Try this delightful recipe today, and enjoy a cozy dessert with family and friends!

Mars Bar Squares
- Total Time: 0 hours
- Yield: Makes approximately 16 squares 1x
Description
Indulge in the delightful world of Mars Bar Squares—an irresistible no-bake treat that combines gooey melted Mars bars with crispy Rice Krispies, all topped with a smooth layer of milk chocolate. Perfect for any occasion, from family gatherings to casual snacking, these treats are not only quick and easy to prepare but also customizable to suit your taste. Whether you enjoy them as a sweet pick-me-up or share them at a party, Mars Bar Squares are sure to impress everyone with their deliciously rich chocolate flavor and satisfying crunch. Try this simple recipe today and enjoy a delectable dessert that everyone will love!
Ingredients
- 1/2 cup unsalted butter
- 4 Mars bars (chopped)
- 3 cups Rice Krispies
- 1 cup milk chocolate chips
Instructions
- Grease an 8×8 inch baking pan.
- In a large saucepan, melt the butter over low heat. Add chopped Mars bars and stir until smooth.
- Remove from heat and fold in Rice Krispies until evenly coated.
- Press the mixture into the prepared pan using a spatula or greased hands.
- In a heatproof bowl, melt the milk chocolate chips in the microwave, stirring until smooth.
- Spread melted chocolate over the Rice Krispie base and let it set at room temperature for about 2 hours before slicing.
- Prep Time: 10 minutes
- Cook Time: None
- Category: Dessert
- Method: No-Bake
- Cuisine: American
Nutrition
- Serving Size: 1 square (40g)
- Calories: 180
- Sugar: 14g
- Sodium: 20mg
- Fat: 9g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: <1g
- Protein: 2g
- Cholesterol: 10mg