3 Musketeers Brownies

Chocolate lovers beware! These 3 Musketeers Brownies are a delicious, chewy brownie topped with melted 3 Musketeers Bars Frosting! Perfect way to use up leftover Halloween candy!

Four squares of brownies stacked on top of each other

It’s about that time. We’re all about to be overrun with candy. And if you’re anything like me, having little bars of chocolate goodness laying around the house will not be a good thing for the waist line. So instead of munching on candy each night for the next month, make a batch of these easy 3 Musketeers Brownies! Then you’re having dessert after dinner instead!

four squares of 3 Musketeers brownies on their side with a whole pan of brownies in the back


Keep scrolling down for full measurements

Boxed Brownie Mix

Ingredients called for on brownie mix (oil, eggs, etc)

3 Musketeers Candy Bars

How To Make the Brownies:

Mix up the brownie batter based on the instructions on the back of your box. Then pour the batter into a square pan – I used an 8×8.

Bake the brownies for about 5 minutes less than the directions on the box suggest.

Remove the brownies from the oven and while they are still hot, top them with the candy bars. Put them back in the oven for another 5 minutes or so. Then use a knife to spread the melted candy bars across the brownies to create a ‘frosting’.

Four brownie squares stacked on top of each other

Can I Substitute A Different Candy Bar?

Of course! I would highly recommend sticking to the chocolate bars – Milky Way or Reese’s PB Cups I think would be delicious as alternatives. I personally do not like nuts or crunchy things in my brownies, but a Snicker’s would work too for those of you that do.

Storing Leftovers

I’m not quite sure how you would have any left, but if you do, you would want to store the brownie squares in an airtight container or Ziploc bag. Keep them just on the counter or in a shelf in the pantry – you don’t want to put them in the fridge, it would harden the candy back up. I would recommend only keeping them for a day or two.

Recommended Equipment:

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squares of brownies topped with a 3 Musketeer frosting

3 Musketeers Brownies

Chocolate lovers beware! These 3 Musketeers Brownies are a delicious, chewy brownie topped with 3 Musketeers Bars 'Frosting'! Perfect way to use up leftover Halloween candy!
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Course Dessert
Cuisine American
Servings 16 brownies


  • 1 package brownie mix
  • 1/2 cup vegetable oil
  • 1/4 cup water
  • 2 eggs
  • 4 full-sized 3 Musketeers Bars


  • Preheat your oven to 350 degrees. Grease the bottom of your pan.
  • Combine the brownie mix, oil, water & eggs in a large bowl and stir about 50 strokes with a spoon.
  • Spread batter into the greased pan.
  • Bake for about 40 minutes.
  • While the brownies are still hot, lay the 3 Musketeers candy bars across the top.
  • Bake for an additional 5 minutes or until you can spread the candy bars to make a ‘frosting’.


Ingredients used in this recipe are based on the ingredients required for the boxed brownie mix. Your mix might call for different ingredients or quantities. Please follow the ingredients from your box.
I used an 8x8 pan for these brownies. If you use a larger pan, you will probably need to add additional 3 Musketeers Bars to cover the full pan.
Keyword Candy, Chocolate, Desserts, Semi-Homemade
Tried this recipe?Let us know how it was!

Thanks for stopping by!

Jaime Oliver Signature









Originally Posted 01/2012 / Updated 10/2020

3 Musketeers Brownies


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