The Best Rainbow Chip Buttermilk Brownies Recipe

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These Rainbow Chip Brownies are made using the best homemade buttermilk brownie recipe! Move over Cosmic Brownies from Little Debbie…these are too delicious to compare!

These Rainbow Chip Brownies are made using the best homemade buttermilk brownie recipe! Move over Cosmic Brownies from Little Debbie...these are too delicious to compare!

Click HERE to save recipe to Pinterest

It seems like overnight the weather has changed. One minute it’s sunny and gorgeous, and the heat is unbearable. And now, all of a sudden, the chill is in the air and the wind is insane.

Or at least that’s what it’s like here in Chicago!

I always think I love summer. Until it becomes so incredibly hot and unbearable to even be outdoors. And then I dream of the weather getting chilly. But when it starts getting too cool, I become a whiner too. I hate being cold!

These Rainbow Chip Brownies are made using the best homemade buttermilk brownie recipe! Move over Cosmic Brownies from Little Debbie...these are too delicious to compare!

Know what warms me up? A hot cup of coffee and one of these Rainbow Chip Brownies. I used my favorite Buttermilk Brownie recipe as that base to these chewy, decadent treats. And of course I had to sprinkle them generously with rainbow chips!

Rainbow chips are not just any sprinkles. They’re little pieces of chocolate in a hard candy coating! They are AWESOME to add to cake batter or frosting. Or cookies! But they taste amazing on top of brownies too.

You may remember growing up and eating Cosmic Brownies from Little Debbie. These fudgy treats remind me of that childhood staple. Except these taste good, haha!!!

No offense to Debbie and her baking skills…but these homemade brownies are delicious! I also have a homemade oatmeal cream pie recipe if you’re looking for something else!

How to Make Rainbow Chip Brownies

Preheat oven to 400 degree F. Line a 13×9 baking dish with parchment paper to make it easy to remove brownies from pan.

In a small saucepan, over medium high heat, combine butter, cocoa powder and oil. Bring to a boil and remove from heat.

In a large mixing bowl, combine sugar, eggs, buttermilk and vanilla. Slowly whisk in the butter mixture. Add in flour, baking soda, and kosher salt. Stir just until combined. Fold in chocolate chips.

Pour into prepared baking dish and bake for 20 minutes. Remove from oven and cool.

For the frosting, combine butter, buttermilk, and cocoa powder in a small saucepan. Whisk over medium heat until mixture begins to boil. Remove from heat.

In a mixing bowl, combine powdered sugar with warm butter mixture. Beat for several minutes, until smooth. Pour over cooled brownies and sprinkle with rainbow chips.

Refrigerate for at least two hours (or overnight). Cut and enjoy!

Love today’s Rainbow Chip Brownies recipe? I’ve got some more delicious brownies on the blog:

fudgy-zucchini-brownies-3

Fudgy Zucchini Brownies: no one will know that you snuck in some veggies, these are still so decadent and sweet!

buckeye-brownies-2

Buckeye Brownies: fudgy brownies topped with a peanut butter filling. All covered in a rich, chocolate ganache!

Chocolate Mint Brownies: rich, fudgy brownie base topped with a mint ganache and melted #milkchocolate #stpattysday www.shugarysweets.com

Chocolate Mint Brownies: sweet and minty, the perfect after dinner dessert!

Still looking for more brownie recipes? Stop by these blogs:

These Rainbow Chip Brownies are made using the best homemade buttermilk brownie recipe! Move over Cosmic Brownies from Little Debbie...these are too delicious to compare!

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Yield: 40 small bars

Rainbow Chip Brownies

Rainbow Chip Brownies
Prep Time 5 minutes
Cook Time 20 minutes
Additional Time 2 hours
Total Time 2 hours 25 minutes

These Rainbow Chip Brownies are made using the best homemade buttermilk brownie recipe! Move over Cosmic Brownies from Little Debbie...these are too delicious to compare!

Ingredients

For the Brownies:

  • 1/2 cup unsalted butter
  • 1/4 cup dark chocolate unsweetened cocoa powder
  • 1/2 cup canola oil
  • 2 cups granulated sugar
  • 2 large eggs
  • 1/4 cup buttermilk
  • 1/2 tsp vanilla extract
  • 2 cups all-purpose flour
  • 1 tsp baking soda
  • 1/2 tsp kosher salt
  • 1 cup semi-sweet chocolate morsels

For the Frosting:

  • 1/2 cup unsalted butter
  • 1/2 cup buttermilk
  • 1/4 cup dark chocolate unsweetened cocoa powder
  • 4 cups powdered sugar
  • 1 cup rainbow chips

Instructions

  1. Preheat oven to 400F. Line a 13x9-inch baking dish with parchment paper. Set aside.
  2. For the brownies, in a small saucepan over medium high heat, combine butter, cocoa powder and oil. Bring to a boil and remove from heat.
  3. In a large mixing bowl, combine granulated sugar, eggs, buttermilk and vanilla. Slowly whisk in the butter mixture. Add in flour, baking soda, and salt. Stir just until combined. Fold in chocolate chips.
  4. Pour into prepared baking dish and bake for 20 minutes. Remove from oven and cool.
  5. While cooling, prepare the frosting. Combine butter, buttermilk and cocoa powder in a small saucepan. Whisk over medium heat until mixture begins to boil. Remove from heat.
  6. In a mixing bowl, combine powdered sugar with butter mixture. Beat for several minutes until smooth. Pour over brownies. Sprinkle immediately with rainbow chips!
  7. Refrigerate for about 2 hours, until set. Cut and enjoy. I store these in the refrigerator for best results!

Nutrition Information:

Yield:

40

Serving Size:

1

Amount Per Serving: Calories: 219 Total Fat: 10g Saturated Fat: 5g Trans Fat: 0g Unsaturated Fat: 5g Cholesterol: 22mg Sodium: 82mg Carbohydrates: 31g Fiber: 1g Sugar: 25g Protein: 2g
*Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice

These Rainbow Chip Brownies are made using the best homemade buttermilk brownie recipe! Move over Cosmic Brownies from Little Debbie...these are too delicious to compare!

Recipe originally published October 15, 2015

**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

15 comments on “The Best Rainbow Chip Buttermilk Brownies Recipe”

  1. These brownies are just making me smile right now. Adorable.

    Your weather situation in Chicago sounds a lot like Buffalo. This year, we went fro high 80’s to what feels like frigid weather. No sun. Rain. Can’t even mow the lawn. Hope our neighbors aren’t mad! Oh well, I’ll just make these brownies instead. Would you consider liking the bowl a workout? No. How about whipping around that spatula?

  2. So fun! Seeing a plate of these would definitely put a smile on my face 🙂

  3. Thanks for the brownie linky love 🙂 And yes Chicago weather is like that, it goes from hot to cold, overnight. None of those nice ‘fall’ days. It’ll be snowing next week. lol

    I have never made brownies with buttermilk! I’ve tried a gazillion brownie recipes, but never with buttermilk. Now I think I have to!

  4. I have never seen rainbow chips before! Just in time for my kids’ birthday cakes! And of course these amazing brownies!

  5. These are so happy-making!  I have not ever seen Rainbow Chips; good golly, all I’ve been missing.  Oh good, I just noticed Lauren above hasn’t seen them either.  Thanks for the delish reicpe, weather update and the happy post.

  6. I think that’s just human nature right? When we are hot we complain…when we are cold we complain…why can’t it just be 72 degrees all the time?? 🙂 At least we have rainbow chip brownies to make ourselves feel better 🙂

  7. These are so fun and colorful! That gooey frosting looks divine!

  8. Mir

    I’m not happy about the sudden cold snap, either, and I’m not even in Chicago. I used to go there all the time. I love the pizza! Miss it lots and lots.
    These brownies are so happy. They might drive the chill away!

  9. OMG OMG OMG OMG!!!! These look – UGH! I want. And then all the other recipes – SOOOO GOOOOD!!

  10. Ooo Buttermilk brownies! Never made them with buttermilk, but they look so delish. And I am SOOOOO jealous your weather has changed, still 85-90F here in So Cal… still hating turning the oven on!! 

  11. My pet unicorn wants me to tell you she approves. 🙂 

  12. Pingback: Thick and Fudgy Mint Chocolate Chip Brownies Recipe

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