Mars Bar Brownies are the ultimate treat for anyone who loves rich chocolate desserts with a caramel twist. This recipe combines the classic fudgy brownie texture with the gooey sweetness of Mars bars, making it stand out from traditional brownie recipes. The melted chocolate and caramel chunks create layers of flavor that keep every bite interesting and satisfying.
What makes this recipe even better is how simple it is to prepare. With just a few pantry staples and chopped Mars bars, you can bake a batch in under an hour. Whether you want to serve them at family gatherings, share them with friends, or enjoy them as a late-night treat, these brownies are always a hit. Plus, they’re easy to customize with extra toppings like chocolate drizzle, nuts, or caramel sauce for even more indulgence.
Why You’ll Love These Mars Bar Brownies
- Rich and fudgy texture – These brownies strike the perfect balance between gooey and soft, without being too cakey.
- Caramel-chocolate flavor – The chunks of Mars bars melt into the batter, giving every slice a delicious combination of chocolate, caramel, and nougat.
- Simple ingredients – You only need basic baking staples plus a few Mars bars to create this indulgent dessert.
- Quick to prepare – The batter comes together in minutes, and the baking time is under 30 minutes.
- Perfect for any occasion – From birthdays to casual weekends, these brownies are versatile enough to suit any setting.
- Customizable – You can easily add chopped nuts, drizzle melted chocolate, or top them with extra Mars bar pieces for more flavor and texture.
Ingredients Needed
To make these brownies, you’ll need a handful of simple baking staples and a few Mars bars. Each ingredient plays an important role in creating the rich and gooey texture that makes this recipe special.
- ½ cup butter (113g), melted – Provides richness and helps achieve that soft, fudgy texture.
- 1 cup granulated sugar (200g) – Sweetens the brownies and balances the cocoa.
- 2 large eggs – Bind the batter together and add structure.
- 1 teaspoon vanilla extract – Enhances the chocolate flavor with a subtle warm note.
- ½ cup unsweetened cocoa powder (50g) – Creates the deep chocolate taste that defines brownies.
- ½ cup all-purpose flour (65g) – Gives the brownies stability without making them too dense.
- ¼ teaspoon baking powder – Helps lift the brownies slightly, preventing them from becoming overly heavy.
- ¼ teaspoon salt – Balances sweetness and enhances the flavors.
- 4 Mars bars, chopped – The star ingredient that melts into gooey caramel-chocolate bites throughout the brownies. You can add a few extra pieces on top before baking for even more flavor.
Optional additions: A drizzle of melted chocolate or caramel sauce after baking, or a sprinkle of chopped nuts for added crunch.
Step-by-Step Instructions
Follow these steps for the best results when baking your Mars Bar Brownies:
- Preheat the oven and prepare the pan
Set your oven to 350°F (175°C). Line an 8×8-inch (20×20 cm) square baking pan with parchment paper or lightly grease it with butter. This makes it easier to remove the brownies once baked. - Melt the butter
In a small saucepan or microwave-safe bowl, melt the butter. Allow it to cool slightly so it doesn’t scramble the eggs when mixed in. - Mix the wet ingredients
In a large mixing bowl, whisk together the melted butter, sugar, eggs, and vanilla extract until smooth and well combined. This mixture should look slightly thick and glossy. - Add the dry ingredients
Sift in the cocoa powder, flour, baking powder, and salt. Gently fold the ingredients into the wet mixture using a spatula or wooden spoon. Mix only until combined—overmixing can lead to dry or cakey brownies. - Fold in the Mars bars
Chop the Mars bars into bite-sized pieces and gently fold them into the batter. For extra caramel-chocolate goodness, reserve a few chunks to sprinkle on top before baking. - Bake the brownies
Pour the batter into the prepared pan and spread it evenly. Place in the oven and bake for 25–30 minutes, depending on your preferred texture. A toothpick inserted in the center should come out with moist crumbs but not wet batter. - Cool before cutting
Allow the brownies to cool completely in the pan before slicing. This helps them set properly and makes it easier to cut clean squares.
Storage:
- Store brownies in an airtight container at room temperature for up to 3 days.
- Refrigerate for up to 1 week.
- Freeze individually wrapped pieces for up to 2 months.
Tips for Perfect Brownies
- Use room temperature eggs for better mixing.
- For extra fudgy brownies, remove them from the oven when the center is slightly soft.
- Add a drizzle of melted chocolate or caramel sauce before serving for more indulgence.
- Let them cool before slicing to prevent crumbling.
Caramel-swirled Mars Bar Brownies Recipe
Description
Rich, fudgy brownies filled with gooey caramel and chocolate chunks from Mars bars. Easy to prepare and perfect for dessert lovers who want a sweet twist on classic brownies.
Ingredients
Instructions
-
Preheat oven to 350°F (175°C). Line or grease an 8x8-inch (20x20 cm) square pan.
-
Melt the butter in a saucepan or microwave-safe bowl and let it cool slightly.
-
In a large mixing bowl, whisk together melted butter, sugar, eggs, and vanilla until smooth.
-
Sift in cocoa powder, flour, baking powder, and salt. Gently fold until just combined—do not overmix.
-
Fold in the chopped Mars bars, reserving a few pieces to sprinkle on top.
-
Pour the batter into the prepared pan and spread evenly. Top with reserved Mars bar pieces.
-
Bake for 25–30 minutes, or until a toothpick inserted in the center comes out with moist crumbs.
-
Allow the brownies to cool completely in the pan before slicing into squares.
