cosmic blondies;

September 8, 2023Katie
A cosmic blondie on a plate beside a platter of blondies and mini m&ms scattered around
cosmic blondies;
Sweet, dense, chewy white chocolate blondies topped with a thin sweet layer of icing and colorful chocolate candies as topping.
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Mini m&ms pouring onto a plate filled with m&ms and cosmic blondies sitting on top

Ever had a cosmic brownie? These Little Debbie dense and fudgy chocolate brownies topped with colorful chocolate bits were a staple of my childhood–I used to be able to buy them at school for 50 cents. But I have to say, these cosmic blondies might even edge out traditional chocolate cosmic brownies as a new favorite!

The thing about cosmic brownies is that the texture, while reminiscent of cakey brownies is so dense, it’s almost fudge-like. And actually, the extra cocoa butter in these white chocolate blondies make them so dense but they melt in your mouth. They’re so simple to make, but the fudgy, gooey texture is buttery and dense, without being overpoweringly sweet (thanks salt). They’re fun, colorful, delicious, and simple to make–what’s not to like here?

Mini m&ms pouring onto a plate filled with m&ms and cosmic blondies sitting on top

I have a problem grocery shopping when it comes to chocolate… Every time I walk down the baking aisle at the store I have to look at the chocolate chips. I’ve found some really fun flavors–in fact you can see my rating of 5 different chocolate chip flavors.

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If you can get your hands on them, swap in funfetti white chocolate chips for your standard white chocolate chips!

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In this case, if you’re able to find Nestle Funfetti white chocolate chips, I highly recommend them. They melt well, add extra flecks of color to the bars, and add an extra vanilla undertone–all for zero extra work. The extra flecks of funfetti color adds to the cosmic colors and they’re made to stand up in the oven being baked so they don’t melt or blend together. That said, if you can’t find them, white chocolate chips will work perfectly deliciously.

Stack of cosmic blondies

So when it comes to the white chocolate in this recipe, there are some important things to note. White chocolate bars, baker’s chocolate, or chocolate chips? It comes down to fat content. In these cosmic blondies, chocolate chips work fine. With the entire stick of butter, there’s plenty of fat which will create the ooey gooey texture. Which I like and prefer personally because chocolate bars are usually more expensive and I don’t always keep them on hand. Whereas I always have chocolate chips on hand.

A plate of cosmic blondies

I didn’t bother to get out my electric mixer and whip the eggs, but the original recipe shared by fitwafflekitchen did whip the eggs, which might make them fluffier. (She shared on IG, I actually can’t find the recipe on her blog.) That said, I like my brownies and blondies dense and chewy, and even just mixing in the eggs with a normal spoon, these turned out ah-mazing.

If you want to be more true to the little debbie “cosmic brownie” look, you can find rainbow chocolate covered morsels instead of mini m&ms.

secret to success
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This brings me to the “cosmic” part of cosmic blondies. The traditional little debbie topping is a fudgy icing speckled with little rainbow-colored chocolate morsels. Although my grocery store didn’t carry them, the places that did stock them seemed overpriced for what you were getting. I found a 1.5lb container for $30. Too many and too expensive so I nixed that option right away. Mini m&ms work fine, taste good, and are easy to find.

blondie with a bite taken out of it nearby a stack of blondies and a plate of arranged blondies

So I turned to my friends, mini m&ms! Easy to find in the grocery store, and still rainbow-colorful to satisfy the cosmic brownie aura. I even considered skipping them with the flecks of funfetti color from the sprinkles, but I feel like they miss something iconic about the in-your-face rainbow without the m&ms. Plus the milk chocolate is a delicious offset to the sweet white chocolate.

Make sure to keep the cosmic blondies refrigerated! It helps them set up dense and chewy, and it’s also for food safety.

secret to success

Make sure to keep the cosmic blondies refrigerated! It helps them set up dense and chewy, and it’s also for food safety. Since the icing has cream in it, you want to keep it refrigerated. Plus, bonus, I think they taste even better out of the fridge on a hot summer day!

Check out these other delicious dessert bars and ice cream serving suggestions!

  • If you’re a dark chocolate (semi-sweet to be exact) gal or guy, look no further–check out my classic crinkle top brownie recipe!
  • For a fun twist on a salty and sweet blondie, try this halvah blondie recipe. Made with a nutty sesame candy, this recipe from Claire Saffitz’s Dessert Person is to die for.
  • Ice cream always goes wonderfully when paired with brownies, blondies, or any hot summer day. Try out some of my favorite homemade no-churn flavors: vanilla honey ice cream or try roasted strawberry ice cream.
Mini m&ms pouring onto a plate filled with m&ms and cosmic blondies sitting on top

cosmic blondies;

Sweet, dense, chewy white chocolate blondies topped with a thin sweet layer of icing and colorful chocolate candies as topping.
Oven Temp: 325°F
Servings: 9
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Ingredients

blondies;

  • cup white chocolate chips (If you can find the nestle funfetti chocolate chips, I highly recommend!)
  • ½ cup butter
  • 1 tsp salt
  • cup sugar
  • 2 eggs
  • 1 cup flour

cosmic icing;

  • ½ cup white chocolate chips (again, sub funfetti if available)
  • Tbsp heavy cream
  • mini m&ms
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Instructions

blondies;

  • Prepare a 8"x8" pan with parchment paper. I like to lighly spray or drip oil into the pan and use that to keep the parchment paper stuck to the bottom and sides of the pan.
  • In a large bowl, add 1¼ white chocolate chips and ½ cup butter (1 stick). Microwave in 30 second increments until butter is melted. Stir thoroughly between each blast in the microwave until the chocolate is melted and smooth.
  • Add ⅓ cup sugar and 1 tsp salt and mix together until combined.
  • Stirring in the sugar and salt should help cool the chocolate, but double check before adding the eggs (otherwise they might scramble). I just check by dipping in a finger and if it's warm but not hot, it should be fine. Add 2 eggs and mix until combined.
  • Add 1 cup flour and mix until combined.
  • Add blondie batter to the prepared 8"x8" pan and bake at 325°F for 20-25 minutes or until the edges just barely begin to brown and the center no longer jiggles when you shake the pan. Allow to cool.

cosmic icing;

  • When the blondies have cooled enough to ice them, begin the cosmic icing. Add the white chocolate chips to a medium bowl with 1½ Tbsp heavy cream.
  • Microwave in 30 second increments, stirring between each until the chocolate is smooth and melted.
  • Pour the icing on top of the blondies and use a spatula to spread it evenly across the blondies.
  • While the icing is still liquid, sprinkle mini m&ms across the top.
  • Allow icing to cool and set before slicing with a sharp knife. Store cut squares in the refrigerator for up to a week.
Did you make this recipe?Mention @bestwithchocolate or tag #bestwithchocolate!
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2 Comments

  • Matthew Aguilar

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  • cosmic brownies; | Best With Chocolate

    February 23, 2024 at 7:25 pm

    […] you a white chocolate person? Check out these cosmic blondies for the white chocolate version of these cosmic brownies. Or if you prefer a gooey, classic […]

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