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    Home » Recipes » Cupcakes and Mini Cakes » Galaxy cupcakes

    Galaxy cupcakes

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    By Erin Clarkson on Aug 27, 2016 (updated Apr 6, 2022) This post may contain affiliate links.

    Jump to Recipe·Print Recipe

    Easy Vanilla Bean Cupcakes topped with Galaxy Style American Buttercream frosting. These are the perfect space themed cupcakes!

    Table of contents

    • Space Themed Cupcakes
    • How to make Black Buttercream
    • Vanilla Cupcakes with American Buttercream
    • For more related recipes, check out:
    • Recipe for Galaxy Cupcakes

    Space Themed Cupcakes

    I made these space themed cupcakes for a friend's studio opening and they were a giant hit. I've been asked a few times for the recipe so thought I might as well pop it up here! I had seen something similar on the internet a while back and decided to give it a try! They would be amazing for a children's birthday party, or anything space themed. You can also use the same technique with different colours for a non 'galaxy' look - I have done it with pastels before and it looks amazing! 

    How to make Black Buttercream

    The first time that we made space themed cupcakes, Richard was given the job of colouring the icing. I didn't realise that he had gone hard on the black food colouring until everyone who ate a cupcake ended up with black teeth. Thankfully nobody minded. However I have tweaked the recipe slightly, using black cocoa powder in the black part of the icing rather than food colouring. If you can't get your hands on black cocoa powder (its just super dutched cocoa, the stuff that they use to make oreos!), you can use black food colouring, just be aware that it takes a LOT to achieve a true 'black'. 

    Vanilla Cupcakes with American Buttercream

    I went with a vanilla cupcake and an american buttercream. Normally I would use a swiss meringue buttercream for cupcakes, but I find that it never holds really vibrant colours as well as american, and for this I wanted them bright and strong. I made two batches of buttercream - one with the black cocoa, and one plain batch, which I divided into three and coloured with two shades of blue, and purple. 

    Once they were piped, I covered them in flecks of white food colouring to represent "stars" - I just used my finger dipped in the colouring and flicked it on with my finger. I then sprinkled on a small amount of food safe glitter to give it a little sparkle. Make sure that you do this process somewhere that is fairly easy to clean up - the white tends to go everywhere, and the glitter is even worse. I generally turn a bowl upside down in the sink, then sit the whole cooling rack on top of it so that afterwards everything can be washed away. 

    I used a vanilla cupcake recipe, but these really can be made with whatever you like. I also chose to make mini cupcakes, but feel free to make these whatever size you would like!

    For more related recipes, check out:

    • One Bowl Chocolate Cupcakes with Dark Chocolate Sour Cream Ganache Frosting
    • Vanilla Bean Cupcakes with Chocolate Peanut Butter Buttercream
    • Christmas Macaron Box
    • Black Bean Brownie
    • Small Batch Chocolate Cream Cheese Muffins

    Made this recipe and love it?

    If you made this recipe then I would LOVE for you to leave me a review below to let me know how you liked it! Also, please make sure to tag me on Instagram if you make it!

    A note on salt and oven temperature

    It is important to note the type of salt that is called for in a recipe. I use Diamond Crystal salt throughout my recipes - if you use a different sort of kosher salt or regular table salt you will need to adjust accordingly as some salt is 'saltier' than others. Morton's salt is twice as salty, so you will need half the quantity. Same goes for a regular table salt. I am working to get gram measurements throughout my recipes for salt but still getting there.

    All oven temperatures are conventional unless otherwise stated. If you are baking on fan / convection, you will need to adjust the temperature. An oven thermometer is a great investment to ensure that your oven is the correct temperature.

    Using the double / triple function in the recipe card

    You will notice that there is a '1X' '2X' '3X' button in my recipe card. This can be used for doubling or tripling a recipe. However, please note that this only doubles the ingredient quantities in the ingredients list and NOT in the method. If there are quantities or pan sizes in the method of the recipe (for example weigh out 150g brown butter), you will need to scale this number manually. It will also not change the baking time in the recipe so you will need to adjust this yourself too. It is always a good idea to read through a recipe fully before doubling it just to check this. If you would like to scale this recipe or convert for another pan size, use my calculator!

    Tools and equipment

    For a list of my go-to tools and equipment, I have a post you can refer to here.

    Why is this recipe in grams?

    I post my recipes in grams as it is the most accurate way to bake. Cups are not only inaccurate but they vary in volume worldwide. There is no way for me to provide one cup measure that works for everyone. However, posting in weight fixes this issue. If you would like the recipe in cups you are welcome to convert it yourself via google, but please do not ask me to do it for you as I am not comfortable providing a recipe using a method that I have not tested. Baking with a scale is easy, accurate, and also makes cleanup super simple. Here is the scale that I use if you would like a recommendation! Here's to accurate baking!

    Recipe for Galaxy Cupcakes

    Print
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    Galaxy cupcakes

    • Author: Erin Clarkson
    • Prep Time: 30 minutes
    • Cook Time: 30 minutes
    • Total Time: 3 hours
    • Yield: 24 cupcakes 1x
    • Category: cupcakes
    • Method: baking
    • Cuisine: american
    Print Recipe
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    Description

    Easy Vanilla Bean Cupcakes topped with Galaxy Style American Buttercream frosting. These are the perfect space themed cupcakes!


    Ingredients

    Scale

    Vanilla cupcakes

    • 95g Self raising flour
    • 80g all-purpose flour
    • 100g sugar
    • 120g whole milk
    • 1 tsp vanilla extract
    • 2 large eggs
    • 115g unsalted butter, cubed, at room temperature

    Buttercream

    • 225g unsalted butter, at room temperature
    • 1 tsp vanilla extract
    • 440g powdered sugar
    • 30-45g whole milk
    • Gel food colouring

    Black buttercream

    • 115g butter, at room temperature
    • ½ tsp vanilla extract
    • 190g Powdered sugar
    • 25g Black cocoa
    • 1-2 Tbsp milk

    Instructions

    CUPCAKES

    1. Preheat the oven to 350f/180c. Line a 24 hole mini cupcake tin with liners.
    2. Place flours and sugar in the bowl of a stand mixer fitted with the paddle attachment. Mix on low for two minutes, then add the butter a cube at a time. Do not rush. Mix until it is the consistency of sand. Add half the milk and vanilla, and mix until combined, approximately one minute. 
    3. Add the eggs one at a time, scraping down the bowl after each addition. Add the remainder of the milk, and mix on low speed for 2-3 minutes until well incorporated. 
    4. Divide the batter between the liners, with approximately 1 tbsp of batter in each. Bake for 14-16 minutes, or until the cupcake springs back when pressed lightly. Cool completely on a wire rack.

    PLAIN BUTTERCREAM

    1. Place butter in the bowl of a stand mixer fitted with the paddle attachment. Beat on high until light in colour. Add sifted powder sugar and vanilla, and beat on high until well incorporated. Add milk a tablespoon at a time and beat until it is a smooth and spreadable consistency. 
    2. Divide the buttercream between three bowls, and tint each with the desired 'galaxy' colour using gel food colouring 

    BLACK FOOD COLOURING

    Place butter in the bowl of a stand mixer fitted a paddle attachment. Beat on high until light in colour. Add sifted powdered sugar, black cocoa and vanilla, and beat on high until well incorporated. Add milk a tablespoon a time until it is a smooth and spreadable consistency. 

    ASSEMBLY

    Fit a large piping bag with a closed star tip (A wilton 1M or 2D). Add the buttercream to the bag a tablespoon at a time, alternating each colour in buttercream until the bag is full. Pipe the buttercream onto each cupcake. Place a small amount of gel food colouring in a bowl, watered down if necessary. Using your finger, flick small amounts of the food colouring onto the cupcakes to simulate stars. Follow with a small sprinkle of edible glitter on each cupcake.


    Notes

    Cupcake recipe adapted from Magnolia Bakery

    Keywords: cupcakes, buttercream, american buttercream

    Did you make this recipe?

    Tag @cloudykitchen on Instagram and use the hashtag #cloudykitchen

    Key Ingredients

    • American Buttercream
    • Vanilla
    « Orange Thyme Cake
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      If you made this recipe then I would love for you to leave me a review below to let me know how you liked it! If you have recipe questions please feel free to leave them below too!

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      Comments

    1. Dhrubaa De Mukherjee

      January 18, 2017 at 6:52 pm

      Awww! These are way cute! I will try these for my son's 1st birthday...which is still 7 months away. LOL!

      Reply
      • Erin @ Cloudy Kitchen

        January 22, 2017 at 11:54 pm

        Hahahah they are super cute in real life! I would love to see how they turn out! x

        Reply
    2. Caroline Lee

      February 07, 2017 at 2:23 am

      Where are you measuring cups from?! They're beautiful!!

      Reply
      • Erin @ Cloudy Kitchen

        February 08, 2017 at 8:50 pm

        Thanks! They are from Williams Sonoma 🙂 x

        Reply

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    Erin Clarkson Cloudy Kitchen

    HI, I'M ERIN

    My recipes range from quick & easy all the way to complex & impressive. I love the science and process of recipe development almost as much as baking itself. I specialize in rigorously tested recipes that are fun, reliable, and accurate.

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