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Home › Recipes › Rainbow Cakes

Rainbow Cakes

 Mini Vanilla Cakes with a Bright Sprinkle Surprise!

I get so excited when I spot a rainbow!  It doesnt happen often but rainbows feel magical. They make me feel like a kid again.

I started to imagine how I could cake my very own rainbow.  I am making 7 mini cakes, each one representing a colour of the rainbow.  The cakes will be full of colour from the inside out, topped with some of my favourite candies, and filled with a rainbow surprise.  This is going to be fun.

When I got the chance to decorate these rainbow cakes with my special guest,Tiffany Pratt, it was even more fun!

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  • Ingredients
  • Tools
  • Instructions
  • 6 lb portion of Yo's Ultimate Vanilla Cake
  • Simple Syrup
  • Italian Meringue Buttercream
  • 2 1/2 lbs White Fondant
  • Icing Sugar
  • Chocolate Buttons
  • Coloured Sugar
  • Sprinkles
  • Gumballs
  • Jumbo Gumballs
  • Sour Warheads
  • Banana Candies
  • Rock Candy Sticks
  • Royal Icing Flowers
  • Food Writer Markers
  • Food Grade Alcohol
  • White Food Colouring
  • Royal Icing
  • Clear Piping Gel
  • Wilton Christmas Red Yellow Icing Colours
  • Wilton Orange Icing Colours
  • Wilton Lemon Yellow Colours
  • Wilton Leaf Green Icing Colours
  • Wilton Sky Blue Icing Colours
  • Wilton Violet Purple Icing Colours
  • Wilton Pink Icing Colours
Item Name: Availability:
Rubber Spatula
14 x 4" Round Cake Pans, lined with parchment paper
Ruler
Serrated Knife
1 1/2" Circle Cutter Add to Cart - $24.99
Piping Bag
#806 Round Tip
Small Offset Spatula Add to Cart -
Small Icing Spatula Add to Cart -
Measuring Spoon
Bench Scraper Add to Cart -
Rolling Pin
Fondant Smoother
Paring Knife
Paint Brushes
Sir Squeeze A Lot! Add to Cart -

Prepare Vanilla Cake

Prepare the 6lb portion of Yos Ultimate Vanilla Cake. Divide evenly into 7 bowls (about 14 oz of batter per bowl). Dye each portion one colour of the rainbow.


Bake Cakes

Divide all of the coloured batter between your 14 prepared cake pans.  Two cake pans per colour.  Bake the cakes at 350 for 35-40 minutes, or until a toothpick inserted in the centre comes out clean. Let cool.


Level Cakes

Remove the cakes from their pans, levelling them, and cutting each into two layers. Each coloured cake will be made up of four layers.


Cut Out Cake Holes

Using the 1 1/2 circle cutter, cut a hole from the centre of the two middle cake layers in each colour.


Prepare Simple Syrup

Prepare the simple syrup and soak all the cake layers.


Prepare Buttercream

Prepare the Italian Meringue Buttercream. To fill each cake, place one cake layer down and spread on a layer of buttercream. Then place a cake layer, with a hole cut out, on top. Use a piping bag to pipe a ring of buttercream on top of the cake and spreading it with an offset spatula.


Layer and Fill Cakes with Sprinkles

Place the second cake layer with a hole cut out on top. Fill this secret chamber with rainbow sprinkles, filling all the way to the top. Flip the final layer of cake over and spread a layer of buttercream, flip again and place onto the cake.


Repeat with Other Cakes

Repeat this process with the remaining 6 colours of cake. Once completed, crumb coat and chill for 20 minutes.


Ice Cakes

Ice them smoothly, and chill again.


Mark Cake Boards

Make a mark on the bottom of the cake board to label the colour. Once they are all white, you wont be able to tell.


Cover Cakes with Fondant

Cover each cake with fondant. I rolled out 3/4 lb at a time, and had 1/2 lb left over once the cake was covered.


Prepare Decorating Station

Set up a cake decorating station, invite your friends over or decorate with your kids.


Paint Cakes

Paint your cakes using the same gel food colouring that was used to dye them. Dilute it with food grade alcohol or white food colouring to make it more opaque.


Decorate Cakes

Draw on the cakes with food colouring markers. Glue candy all around with the help of royal icing. Brush on a base of clear piping gel and throw on some sprinkle and sugar.


Congratulations!

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