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Chocolate Cosmic Brownies

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These cakey Chocolate Cosmic brownies are an easy decadent chocolate treat. Unlike chewy brownies that can be overly sweet, these brownies are rich in cocoa flavor and really satisfy those chocolate cravings. Theyโ€™re topped with a luscious and silky-smooth chocolate ganache that whips up like magic. It takes just 5 minutes to make! And theyโ€™re finished with a galaxy of M&Mโ€™s.

Chocolate Cosmic Brownies - top down shot
Chocolate Cosmic Brownies - bar with bite taken out

What are Chocolate Cosmic Brownies?

Cosmic Brownies are in essence simple brownies topped with chocolate frosting and colourful sprinkles or candy. Theyโ€™re a cute kids baking project. Nothing super fancy, just cute and easy to make!

Chocolate Cosmic Brownies - slice being taken out

Why you have to make these Chocolate Cosmic Brownies!

These brownies are perfect for dark chocolate lovers. Theyโ€™re kind of cakey and not too sweet. Which means that the magic ganache that take just 5 minutes to make perfectly evens them out as itโ€™s sweet. The candy on top makes them super nostalgic and cute!

Couple things I love about this recipe

  • Brownies – these arenโ€™t sweet dense brownies, theyโ€™re cocoa brownies. So if youโ€™re a dark chocolate lover, these are for you. Plus theyโ€™re lighter in texture.
  • Magic Ganache – it really is like magic. It comes together in 5 minutes and is so deliciously smooth. Honestly, I donโ€™t think I can go back to making chocolate frosting any other way again.
  • Nostalgia – M&Mโ€™s are a treat I had growing up, and I love how colourful they make these brownies but how simple it is to decorate it. It makes a great kids treat for special occasions.
Chocolate Cosmic Brownies - sliced with one piece coming out

Here are some other brownie recipes youโ€™ll love!

ยท      Best Ever Chewy Chocolate Brownies

ยท      Monster Mash Brownies (kids halloween recipe)

ยท      Ghost Brownies

ยท      Slutty Brownies

ยท      Fudgy Chocolate Brownies Recipe

Chocolate Cosmic Brownies - down top not sliced

The ingredients youโ€™ll need to make these Chocolate Cosmic Brownies!

Chocolate Cosmic Brownies - ingredients image

Unsalted butter โ€“ Make sure the butter is melted and slightly cooled before using. For the ganache, you want to make sure itโ€™s softened.

Cocoa powder โ€“ Use good quality, unsweetened cocoa powder.

Salt โ€“ I used fine sea salt for this recipe.

Baking powder โ€“ This will help your brownies rise slightly.

Eggs โ€“ Make sure your eggs are at room temperature.

Boiling water โ€“ This will help make your brownies fudgy and cakey at the same time.

Espresso powder โ€“ This will help bring out the chocolate flavour in the brownies. Itโ€™s optional but totally worth adding.

Vanilla Extract – Always use good quality vanilla extract when baking, it makes a huge difference. I have a great recipe here for it if youโ€™d like to try your own!

Caster sugar – also known as superfine sugar.

Dark chocolate – also known as semi-sweet, the one I used is cooking chocolate. Itโ€™s important you use this type of chocolate for this frosting for best results. I used the nestle cooking buttons.

Heavy cream – this is the type of cream you use for whipping. Youโ€™ll need to warm your cream up to be quite hot. You can do this on the stove or in the microwave.

Powdered sugar

Powdered sugar – also known as icing sugar.

Mini M&Mโ€™s – These are miniature versions of the regular candy. In itโ€™s place you can use any colored candy or even sprinkle which is a great option.

Chocolate Cosmic Brownies - down top not sliced

Letโ€™s go through each step.

Making these Cosmic Brownies are so much fun and really easy!

Brownie Layer

Chocolate Cosmic Brownies - instructional image 01
  1. Preheat your oven to 175ยฐC / 350ยฐ Spray a 9 x 9-inch square baking tin with oil spray and line the bottom and sides with baking paper, letting some hang over the sides. Add the unsalted butter, caster sugar and vanilla extract to a large mixing bowl and mix using a whisk until well combined.
  2. Add the cocoa powder, salt and baking powder and mix using a spatula until well combined.
Chocolate Cosmic Brownies - instructional image 02
  1. Then add the eggs and whisk.
  2. In the video I added the flour and boiling water at the same time. Donโ€™t do that. Add the boiling water first, mix until well combined. THEN add the flour and instant coffee powder and mix until well combined.
Chocolate Cosmic Brownies - instructional image 03
  1. Pour the batter into the pre-prepared cake tin. Bake for 30 minutes. Once baked, allow to cool completely at room temperature.

Magic Ganache

Chocolate Cosmic Brownies - instructional image 04
  1. Begin by adding the dark chocolate into the bowl of a food processor along with the hot cream. See notes on how to heat cream. Mix on high speed until the chocolate is completely melted. Alternatively, you can melt these two ingredients in the microwave until smooth.
  2. Next, add the butter and powdered sugar and mix on high speed until completely smooth.
Chocolate Cosmic Brownies - instructional image 05
  1. Pour the ganache onto the cooled brownies.
  2. Spread around evenly.
Chocolate Cosmic Brownies - instructional image 06
  1. Sprinkle with M&M candy. Chill for 30 minutes.
  2. Lift the brownies out of the cake tin. Slice up before serving.
Chocolate Cosmic Brownies - stacked on a plate wide

My Top Tips!

Storage

Cosmic Brownies can be stored in an airtight container for up to three days.

Cream

To heat your cream up simply add to a saucepan and heat on low heat until bubbles just begin to Show. Do not let it bubble. You can also heat it up in the microwave for 60 seconds.

Candy

If you canโ€™t get M&Mโ€™s in your area, you can use sprinkles or any type of candy that looks similar to M&Mโ€™s.

Chocolate Cosmic Brownies - stacked on a plate close up

Gave this a go? Donโ€™t forget to rate the recipe and leave a comment below! Hungry for more? Join me on Instagram, Facebook, Pinterest and TikTok for more great recipes!

Cosmic Brownies - thumbnail 24

Chocolate Cosmic Brownies

These simple Chocolate Cosmic brownies are easy to make. Theyโ€™re topped with a luscious and silky smooth 5-minute ganache and a galaxy of M&Mโ€™s.

Serves 12

4.8 from 4 votes
Print Recipe Pin Recipe
Prep: 25 minutes
Cook: 35 minutes
Total: 1 hour 15 minutes
Course: Dessert
Cuisine: American
Calories: 453kcal

Ingredients

Brownie Layer

  • 1/2 cup / 113 g unsalted butter, melted
  • 1 1/4 cups / 260 g caster sugar
  • 1 tsp vanilla extract
  • 1/2 cup / 50 g cocoa powder
  • 1/2 tsp salt
  • 1/2 tsp baking powder
  • 3 eggs
  • 1/4 cup / 60 ml boiling water
  • 3/4 cups / 115 g all-purpose flour
  • 1 tsp espresso powder

Magic Ganache

  • 1 1/2 cups / 300 g dark chocolate
  • 3/4 cup / 185 ml heavy cream, hot (see notes)
  • 1/2 cup / 125 g unsalted butter
  • 1/2 cup / 75 g powdered sugar
  • 1/2 cup / 100 g mini M&Mโ€™s

Learn How To Make it! [VIDEO]


Instructions

Brownie Layer

  • Preheat your oven to 175ยฐC / 350ยฐF. Spray a 9 x 9-inch square baking tin with oil spray and line the bottom and sides with baking paper, letting some hang over the sides.
  • Add the unsalted butter, caster sugar and vanilla extract to a large mixing bowl and mix using a whisk until well combined.
  • Add the cocoa powder, salt and baking powder and mix using a spatula until well combined. Then add the eggs and whisk.
  • In the video I added the flour and boiling water at the same time. Donโ€™t do that. Add the boiling water next, mix until well combined, THEN add the flour and instant coffee powder and mix until well combined.
  • Pour the batter into the pre-prepared cake tin. Bake for 30 minutes. Once baked, allow to cool completely at room temperature.

Magic Ganache

  • Begin by adding the dark chocolate into the bowl of a food processor along with the hot cream. See notes on how to heat cream. Mix on high speed until the chocolate is completely melted. Alternatively, you can melt these two ingredients in the microwave until smooth.
  • Next, add the butter and powdered sugar and mix on high speed until completely smooth.
  • Pour the ganache onto the cooled brownies and spread around evenly. Sprinkle with M&M candy. Chill for 30 minutes. Lift the brownies out of the cake tin and slice up before serving.

Notes

Storage
Cosmic Brownies can be stored in an airtight container for up to three days.
Cream
To heat your cream up simply add to a saucepan and heat on low heat until bubbles just begin to Show. Do not let it bubble. You can also heat it up in the microwave for 60 seconds.
Candy
If you canโ€™t get M&Mโ€™s in your area, you can use sprinkles or any type of candy that looks similar to M&Mโ€™s.

Nutrition

Calories : 453kcal
Carbonhydrates: 26g
Protein: 5g
Fat: 32g
Saturated Fat: 19g
Polyunsaturated Fat: 1g
Monounsaturated Fat : 9g
Trans Fat : 1g
Cholesterol: 99mg
Sodium: 144mg
Potassium : 289mg
Fiber: 4g
Sugar : 13g
Vitamin A: 759IU
Vitamin C: 1mg
Calcium: 55mg
Iron: 4mg
Nutrition Disclosure
Gave this recipe a go?Mention @thescranline or tag #thescranline!

6 comments

J0my June 6, 2022 - 3:33 am

Hi Nick, I see these are the same as the ones from the Blackberry Cheesecake Brownie Bars. You seem to have copied the same incorrect amount of cocoa like you did for that written recipe, you have 150g of cocoa here instead of 50g as it should be ๐Ÿ™‚

Being the same recipe these are actually just really good solid brownies for when you don’t feel like fudgy. I am looking forward to trying your frosting though as its different ๐Ÿ™‚

Reply
Nick Makrides June 8, 2022 - 3:19 am

Thanks so much for letting me know JOmy! I really appreciate it! N x

Reply
Karen October 13, 2022 - 12:11 am

5 stars
Hi Nick. If you needed to double this recipe, would a 9×13″ baking tin be large enough? And, how long do you advise baking them for. I am terrible for leaving them in about 2 minutes too long. They look FANTASTIC!!!!

Reply
Nick Makrides October 25, 2022 - 6:43 am

Hi Karen! I think that should be fine, although I suspect they’d come out a little taller. Although, I’ve never tried it. If it were me, I’d be baking two batches of brownies.

Reply
Charlie Hardman June 30, 2024 - 12:26 am

5 stars
Love it

Reply
Nick Makrides July 22, 2024 - 10:03 am

Thanks Charlie! N x

Reply
4.75 from 4 votes (2 ratings without comment)

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