• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Lights, Camera, BAKE!
','

  • Recipes
    • Bars and Slices
    • Blondies and Brownies
    • Bread
    • Cake and Cupcake Recipes
    • Cheesecake Recipes
    • Cookies
    • Fillings and Icings
    • Frozen Desserts
    • Holidays
      • Christmas
      • Easter
      • Halloween
      • Mother's Day
      • St Patricks Day
      • Valentines Day
    • Muffins
    • No bake
    • Pies and Tarts
    • Special Diets
      • Dairy Free
      • Gluten Free
      • Paleo
  • About
  • Work With Me
  • Privacy Policy
    • Privacy Policy/Disclaimer
  • Contact
menu icon
go to homepage
  • Recipe Index
  • Christmas
  • About
  • Contact
  • Work With Me
    • Media
    • Facebook
    • Instagram
    • Pinterest
    • TikTok
    • YouTube
  • search icon
    Homepage link
    • Recipe Index
    • Christmas
    • About
    • Contact
    • Work With Me
      • Media
    • Facebook
    • Instagram
    • Pinterest
    • TikTok
    • YouTube
  • ×
    Home » Recipes » Bars and Slices

    Unicorn Cookie Bars

    Published: Jul 2, 2019 · Modified: Jan 11, 2025 by Emma Burton · This post may contain affiliate links · 2 Comments

    Jump to Recipe Print Recipe

    **Post and photos updated July 2019**

    I'm fashionably late to the unicorn party but I've finally made it. If the stores and my cousin are anything to go by, the unicorn trend is still going strong.

    Say hello to Unicorn Cookie Bars. Soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream dyed pastel colours to really amp up the unicorn/rainbow feel of these cookie bars.

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars

    These bars are a spin on these Rainbow M&M Blondies topped with a beautiful, creamy and sweet vanilla buttercream.

    *Note: These have been made successfully with gluten free flour.*

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars

    I went for a simple vanilla buttercream using only four ingredients. Butter, milk, icing sugar and vanilla extract. The key to a really smooth and creamy buttercream is using room temperature butter. Any harder and you will end up with lumps in your buttercream and any softer the buttercream will be too runny.

    I also like to beat my butter until smooth before adding any of the other ingredients to ensure no lumps.

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars

    For these bars, you need to then divide the buttercream into three bowls and add a different colour to each. I went with red and blue and then combined the red and blue together to create a purple. What colours you use are up to you but I recommend using gel colours not liquid. Liquid can cause the buttercream to split.

    When I frosted these cookie bars I blobbed each colour around the top of the bars and then lightly swirled with a knife.

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars

    The cookie dough is soft and chewy, gooey and packed full of M&Ms, chocolate chips and sprinkles. I add the sprinkles last and only fold them through the batter a few times so the sprinkles colours don't 'bleed' through the dough.

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars

    I hope you enjoy these Unicorn Cookie Bars and I truly hope you give this recipe a go and remember to rate and report back your results in the comments below. I love reading your comments! Also #lightscamerabake on Instagram for a chance to be featured and don’t forget to subscribe to my YouTube Channel for fun baking videos!

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars
    Print Recipe
    5 from 1 vote

    Unicorn Cookie Bars

    Soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream dyed a few colours just to make these really unicorn like.
    Prep Time20 minutes mins
    Cook Time20 minutes mins
    Total Time40 minutes mins
    Course: Dessert, Snack
    Cuisine: American
    Servings: 12 Pieces
    Calories: 355kcal
    Author: Emma Burton

    Ingredients

    • ½ Cup Butter, Softened (110g)
    • ½ Cup Brown Sugar (90g)
    • 3 Tbsp. Icing Sugar (25g)
    • 1 teaspoon Vanilla Extract
    • 1 Large Egg
    • 1 and ¼ Cup All-Purpose Flour (155g)
    • 2 Tbsp. Cornflour (15g)
    • ½ teaspoon Baking Soda
    • ¼ Cup Sprinkles (40g)
    • ½ Cup M&Ms (120g)
    • ¼ Cup Chocolate Chips (45g)

    Buttercream;

    • ½ Cup Butter, Softened (110g)
    • 1 and ½ Cups Icing Sugar (185g)
    • 1 teaspoon Vanilla Extract
    • 1-2 Tbsp. Milk, more or less as needed
    • Red Gel Food Colouring
    • Blue Gel Food Colouring
    • ¼ Cup Sprinkles (40g)
    Metric - US Conventional

    Instructions

    • Preheat the oven to 180°C (350°F) and line an 8"x8" baking pan with baking paper.
    • Beat the butter, brown sugar and icing sugar together.
    • Beat in the egg and vanilla extract.
    • Add in the flour, cornflour, baking soda, sprinkles, M&Ms and chocolate chips and beat together.
    • Pour into the prepared pan and bake for around 20 minutes. The top and sides should be golden and the middle will be slightly wobbly for the goo factor.
    • Allow the slcie to cool completely before icing with the buttercream.
    • For the buttercream;
    • Beat the butter until smooth.
    • Add in the icing sugar and vanilla essence and beat.
    • Add in one tablespoon of milk and beat.
    • Add more milk if the buttercream won't come together or is too stiff.
    • You want a spreadable but not runny consistency.
    • Separate the buttercream into two bowls.
    • To one bowl add a touch of red food colouring and to the other add the blue.
    • Start with a touch and mix the colouring through and add more until you have the colour you desire.
    • Place a dollop of each colour randomly around the slice and then lightly spread in an even layer. The colours may overlap in places turning patches purple.
    • Cover with sprinkles and then slice and serve.

    Nutrition

    Serving: 1Piece | Calories: 355kcal | Carbohydrates: 49g | Protein: 2g | Fat: 17g | Saturated Fat: 11g | Cholesterol: 57mg | Sodium: 173mg | Potassium: 36mg | Fiber: 1g | Sugar: 36g | Vitamin A: 31IU | Calcium: 21mg | Iron: 1mg
    Tried this Recipe? Tag me Today!Mention @LightsCameraBake or tag #lightscamerabake!

    Unicorn Cookie Bars are soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream. #unicorncookiebars #rainbowbuttercream #cookiebars #funfetticookiebars #funfetticookies #m&mcookiebars

     

    Unicorn Cookie Bars. Soft, gooey and chewy cookie bars packed full of sprinkles, M&Ms and chocolate chips topped with a funfetti buttercream dyed a few colours just to make these really unicorn like. #unicorncookiebars #unicornbars #mandmbars
    I just had to add this photo at the end. Don't these Unicorn Cookie Bars look dramatic! Exactly what Lights, Camera, BAKE! is about!

    More Bars and slices

    • slices of boysenberry shortcake on a pink background.
      Boysenberry Cheesecake Shortcake
    • Slices of apple shortcake on a plate.
      Apple Shortcake
    • KitKat slice on a plate.
      KitKat Cookie Bars
    • Caramilk cheesecake filled cookie bar slice on a plate.
      Caramilk Cheesecake Cookie Bars

    Reader Interactions

    Never Miss A Recipe

    * indicates required
    /* real people should not fill this in and expect good things - do not remove this or risk form bot signups */

    Intuit Mailchimp

    Comments

    1. Karly

      August 01, 2017 at 8:08 am

      In love with all the unicorn things!! Cannot wait to try these out!!

      Reply
      • Emma

        August 01, 2017 at 1:02 pm

        I love how bright and colourful everything unicorn is. I hope you enjoy them!

        Reply

    Leave a ReplyCancel reply

    Primary Sidebar

    Girl smiling with handing pockets with purple and blue lights. Emma profile picture

    Hi! I'm Emma, the the driving force Lights, Camera, Bake!. I develop the recipes, style the food and produce the accompanying photos and videos for you at home.

    More about me →

    Christmas Recipes

    • White chocolate covered mint Oreo truffle.
      Mint Oreo Truffles
    • Chocolate Chip cookies on a white background.
      Cranberry and Chocolate Chip Cookies
    • Chocolate Yule Log is a classic Christmas recipe that takes a sponge roll cake and turns it festive! #chocolatespongeroll #yulelog #chocolateyulelog #yulelogcake #fatlessspongerecipe
      Chocolate Yule Log
    • Christmas Tree Brownies are rich and fudgy chocolate brownies decorated like Christmas trees for a fun Christmas treat. #christmas #christmasbaking #christmastreebrownies #christmasbrownies #fudgybrownies
      Christmas Tree Brownies
    • Christmas Peppermint Brownies are rich, dark chocolate, fudgy brownies, topped with a peppermint icing, a drizzle of peppermint chocolate ganache and pieces of candy canes. #christmasbrownies #christmasrecipe #christmasbaking #peppermintbrownies #christmaspeppermintbrownies #candycanebrownies
      Christmas Peppermint Brownies
    • Christmas Cookie Bars are soft and gooey spiced cookie bars with white chocolate buttons and Christmas themed M&Ms. #christmasrecipe #mandmcookies #cookiebars #mandmcookiebars #christmascookiebars
      Christmas Cookie Bars

    Never Miss A Recipe

    * indicates required
    /* real people should not fill this in and expect good things - do not remove this or risk form bot signups */

    Intuit Mailchimp

    Popular Recipes

    • Easy Date Scones chopped in half with melted butter and runny honey drizzled over the plate.
      Easy Date Scones
    • Kinder Bueno Cookie Bars are chewy and soft cookie bars packed full of Kinder chocolate, Kinder Bueno and extra chocolate and white chocolate chips! #kinderbueno #cookiebars #kinderbuenocookies #kinderbuenocookiebars #kinderbuenobrownies
      Kinder Bueno Cookie Bars
    • Two pieces of Caramilk Brownies on top of each other on a white bench.
      Caramilk Brownies
    • Condensed Milk Blondies are a twist on my VERY popular Condensed Milk Brownies recipe! This is the vanilla/caramel version of those brownies. We have an ultra fudgy and gooey blondie made from condensed milk. #condensedmilkblondies #condensedmilkbrownies #condensedmilkcookies #cookiedoughfudge #cookiefudge
      Condensed Milk Blondies
    • Condensed Milk Brownies. Super chewy, fudgy and dense chocolate brownies using condensed milk as the base. #condensedmilkdessert #condensedmilkbrownies #chewybrownies #fudgybrownies #condensedmilkfudge #qucikandeasyfudge
      Condensed Milk Brownies
    • Egg Yolk Sponge Cake is a super light and fluffy sponge relying on egg yolks as the base which delivers a rich and fluffy sponge. Filled with whipped cream and jam, dusted with icing sugar and you have a classic sponge cake for dessert, morning tea or just for fun. #eggyolkspongecake #spongecake #spongecakerecipe #easycakerecipe
      Egg Yolk Sponge Cake

    Featured on

    Delivery Rank interview logo
    Logo for Australian House & Garden
    Foodgawker logo

    Footer

    ↑ back to top

    About

    • About
    • Privacy Policy
    • Accessibility Statement

    Newsletter

    • Sign Up! for emails and updates

    Contact

    • Contact
    • Blog
    • Work With Me

    As an Amazon Associate I earn from qualifying purchases.

    Copyright © Lights, Camera, BAKE! 2024 Brunch Pro on the Feast Plugin

    Rate This Recipe

    Your vote:




    A rating is required
    A name is required
    An email is required