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If you’ve ever dreamed of biting into a soft, chewy cookie only to hit gooey, melted chocolate inside, then these Mars Bar stuffed cookies are about to be your new obsession. They combine buttery cookie dough with caramel-filled Mars bites in the center for the ultimate sweet treat. Each one is like a mini surprise, crispy on the outside and molten in the middle. Make them for parties, bake sales or just because you have a sweet tooth, and they’ll disappear fast.
These Mars Bar stuffed cookies are soft and chewy on the outside with a gooey, melted candy center. They’re simply perfect for any chocolate and caramel lover.
Also try Oreo cookies, apple butter cookies, homemade granola, or these chocolate chip Reese’s stuffed cookies.
Why You’ll Love It
Soft and chewy: The cookie dough bakes up with crisp edges and a soft center.
Surprise inside: Each bite hides a molten Mars Bar for maximum indulgence.
Crowd-pleaser: Great for parties, holidays or gifting.
Easy to make: You only need simple ingredients and a few basic steps.
Make-ahead friendly: The dough can be chilled and baked later.
Mars Bar Stuffed Cookie Ingredients
A complete list of ingredients and amounts can be found in the recipe card below.
Butter: Adds moisture and richness for a tender cookie texture.
Granulated sugar: Gives structure and sweetness to the cookies.
Brown sugar: Adds moisture and a light caramel flavor.
Eggs: Help bind the dough and contribute to a chewy texture.
All purpose flour: The base that gives the cookies structure.
Leavening agents: Baking soda and baking powder help the cookies rise and spread.
Mars Bars: Gooey centers of chocolate, nougat and caramel that melt perfectly inside each cookie. You can use standard bars, mini bars or the little Mars Bar bites. Bites are the easiest as they’re the right size to add without chopping.
How to Make Mars Bar Filled Cookies
For more detailed instructions with weights and measurements, jump to the printable recipe card.
Mix the dry ingredients: Combine flour, baking soda and baking powder in a bowl.
Cream the butter and sugars: Beat until light and fluffy, then add eggs.
Combine and chill: Add dry ingredients, mix, and refrigerate the dough.
Assemble the cookies: Scoop dough, press a Mars Bar bite in the center and cover with more dough.
Bake and cool: Bake until golden, then let them cool.
Substitutions and Variations
Use different candy: Swap Mars Bars for Snickers, Milky Way or Rolos.
Add texture: Mix chopped nuts or mini chocolate chips into the dough.
Make it gluten free: Use a 1:1 gluten free flour blend.
Chill overnight: For even deeper flavor and better structure.
Serving Suggestions
With a drink: Pair these Mars Bar stuffed cookies with your favorite drink. They’re great with anything from a magic color-change lemonade or Italian cream soda to a banana smoothie.
After dinner: Enjoy a delicious dinner of spaghetti pie or baked salmon with Greek salsa before serving up these tasty homemade cookies.
How to Store Mars Bar Stuffed Cookies
Store: Keep the cookies in an airtight container at room temperature and eat within 2 to 3 days.
Freeze: You can freeze the dough before baking or freeze the finished cookies for up to a month.
Thaw: Defrost at room temperature.
Reheat: If you want to enjoy these warm, give them 10 seconds in the microwave.
Top Tips
Chill the dough: This helps prevent spreading and makes the cookies thicker.
Don’t overfill: You don’t want the filling to leak out.
Seal the edges: Make sure no candy is exposed before baking.
Let them cool: The Mars center will be hot and molten straight from the oven, so let the tasty stuffed cookies cool before serving.
Mars Bar Stuffed Cookies FAQs
Mars bars were created by Forrest Mars at Mars, Incorporated back in 1932 in Slough, England. The British version of this bar was caramel and nougat coated in chocolate. The American version was toasted almonds and nougat in chocolate. Later, they began adding caramel too. In 2002 the American version was discontinued. It was later re-launched as Snickers Almond.
Yes, refrigerate for up to 48 hours or freeze for later use.
Not much, especially if the dough is chilled properly.
Tasty Mars Bar Stuffed Cookies Recipe
Mars Bar Stuffed Cookies
Ingredients
- ¾ Cup butter
- ¾ Cup granulated sugar
- ½ Cup brown sugar
- 2 egg
- 2 Cups all purpose flour
- 1 Teaspoon baking soda
- 1 Teaspoon baking powder
- 24 Mars Bars, bite-sized
Instructions
- In a medium bowl add flour, baking soda, baking powder and salt. Set aside.
- Grease or place parchment paper on 2 baking sheets.
- With an electric mixer, beat butter and sugar until light and fluffy. Add eggs and beat well.
- Gradually add dry ingredients to the creamed mixture. Refrigerate for 1 to 2 hours.
- Preheat oven to 350°F.
- Scoop batter by tablespoons onto baking sheet. Add a Mars bite and place another scoop of batter on top. Close up into a ball.
- Bake for 12 to 14 minutes.
- Allow to cool 5 minutes before moving to cooling rack.
Notes
Don’t overfill: You don’t want the filling to leak out.
Seal the edges: Make sure no candy is exposed before baking.
Let them cool: The Mars center will be hot and molten straight from the oven.
Nutrition
Mars Bar stuffed cookies are the kind of treat that disappears quickly from the cookie jar. The combination of a soft, chewy dough and a gooey, candy-filled center makes them irresistible. Whether you’re baking a batch for guests, kids or just yourself, this stuffed cookie recipe is easy to make and even easier to devour. Keep this recipe in your back pocket for any time you want to impress without fuss.
Other Recipes to Try
Bella Bucchiotti
Bella Bucchiotti is a Canadian-based syndicated food, travel, and lifestyle writer, photographer, and creator at xoxoBella. She founded xoxoBella in 2015, where she shares her love for food, dogs, sustainability, fitness, crafts, outdoor adventures, travel, and philanthropy to encourage others to run the extra mile, try new recipes, visit unfamiliar places, and stand for a cause. Bella creates stress-free and family-friendly recipes for weeknight dinners and festive feasts.
This was the ultimate treat. I always make this when I need a little pick-me-up!
I have never thought to try this! So clever