How To Make The Ultimate Rainbow Cake

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the ultimate RAinbow Cake

The ultimate Rainbow Cake

Have a birthday coming up, garden party or just fancy making a cute cake? Need some cake decorating inspiration?   Make the Ultimate Rainbow Cake with our easy recipe - delicious zesty lemon cake base, a light blue frosting, colourful rainbow chocolate beans and fluffy marshmallow clouds. This gorgeous cake will get everyone excited.

The best bit, it's super simple to make you'll just need one of our zesty lemon cake mixes and a few added extras. Easy peasy!

Have a birthday coming up, garden party or just fancy making a cute cake? Need some cake decorating inspiration?   Make the Ultimate Rainbow Cake with our easy recipe - delicious zesty lemon cake base, a light blue frosting, colourful rainbow chocolate beans and fluffy marshmallow clouds. This gorgeous cake will get everyone excited.

The best bit, it's super simple to make you'll just need one of our zesty lemon cake mixes and a few added extras. Easy peasy!

Ultimate rainbow cake

60 mins

170˚C/ 325˚F

Give it a go

Serves

Print

60 mins

Give it a go

170˚C/ 325˚F

Serves

Tools

2x 6 inches cake tins
scissors
parchment paper

mixing bowl
whisk
spoon
plaette knife/spatula

INGREDIENTS

BKD zesty lemon cake mix
280g butter, softened
3 free-range eggs
1 tbsp milk
1 drop of blue food colouring
50g coloured chocolate beans (about 17 red, 14 orange, 11 yellow, 8 green, 6 blue)
55g mini white marshmallows

60 mins

Give it a go

170˚C/ 325˚F

Serves

Tools

2x 6 inches cake tins
scissors
parchment paper

mixing bowl
whisk
spoon
plaette knife/spatula

INGREDIENTS

BKD zesty lemon cake mix
280g butter, softened
3 free-range eggs
1 tbsp milk
1 drop of blue food colouring
50g coloured chocolate beans (about 17 red, 14 orange, 11 yellow, 8 green, 6 blue)
55g mini white marshmallows

METHOD

Tools

Bunny ears template
Card or paper
Printer
Scissors
Glue stick
Cupcake cases (optional)

Extras

Printable flower template for use if you don't have cupcake cases

 

METHOD

Tools

2 6 inches baking tray

mixing bowl

wisk

spoon

plaette knife/spatula

INGREDIENTS

BKD Zesty Lemon cake mix

280g butter

3 eggs

1tbsp milk

blue food colouring

smarties (red, orange, yellow, green, blue)

mini white marshmallows

STEP 1

 Using the BKD Zesty Lemon Cake mix, bake 2 x 6" cakes, following the instructions on the packet.

STEP 2

When your cake is completely cool, trim them both with a bread knife until they are flat on top.

Tools

2x 6 inches cake tins
scissors
parchment paper

mixing bowl
whisk
spoon
plaette knife/spatula

INGREDIENTS

BKD zesty lemon cake mix
280g butter, softened
3 free-range eggs
1 tbsp milk
1 drop of blue food colouring
50g coloured chocolate beans (about 17 red, 14 orange, 11 yellow, 8 green, 6 blue)
55g mini white marshmallows

STEP 1

zesty lemon cake mix

Bake 2 x 6" cakes. Use one of our zesty lemon cake mixes and spilt the mix equally between the two cake tins. Follow the instructions on the box.

STEP 2

Lemon cake easy recipe

When your cakes are completely cool, trim them with a bread knife so they are flat on top.

Method

STEP 1

Bake 2 x 6" cakes. Use one of our zesty lemon cake mixes and spilt the mix equally between the two cake tins. Follow the instructions on the box.

STEP 2

When your cakes are completely cool, trim them with a bread knife so they are flat on top.

tip

Want a bigger cake, use two mixes for a cake that serves 8-10 and use 8" tins

STEP 3

Zesty Lemon cake and icing kit

Make the lemon buttercream using the mix in our zesty lemon cake mix and following the instructions on the box. Use about 3 tbsp of buttercream, spread evenly on one of the cakes. Next place one cake layer on top of the other.

STEP 3

Make the lemon buttercream using the mix in our zesty lemon cake mix and following the instructions on the box. Use about 3 tbsp of buttercream, spread evenly on one of the cakes. Next place one cake layer on top of the other.

STEP 3

Make the lemon buttercream using the mix in our zesty lemon cake mix and following the instructions on the box. Use about 3 tbsp of buttercream, spread evenly on one of the cakes. Next place one cake layer on top of the other.

STEP 4

Baking for kids

Add a little blue food colouring gel to the rest of the buttercream and mix it until it's a nice light shade of blue.

STEP 5

Fun birthday cake for kids

Using a palette knife or spatula, put a very thin layer of blue buttercream all over the cake. This is called a crumb coating, and will protect your final covering of buttercream from lots of crumbs! Chill in the fridge for 15-20 minutes.

STEP 6

Blue cake decorating for kids

Next take the remaining buttercream and apply it evenly all over the cake. Try and get your edges and top as straight as possible!

STEP 6

Next take the remaining buttercream and apply it evenly all over the cake. Try and get your edges and top as straight as possible!

STEP 7

Rainbow smarties cake

Next take the coloured chocolate beans and place them in a rainbow shape, starting with the red ones first. Keep doing this using a colour at a time.

STEP 8

How to bake an easy rainbow cake

To finish, place your mini marshmallows at the end of the rainbow to look like fluffy clouds. You can place them around the side of the cake too so it looks like a sky!

ENJOY THIS FUN IDEA?

Why not save it to Pinterest so you can easily find it again!

Shop the proJECT

Get everything you need to bake our ultimate rainbow cake!

Zesty Lemon Cake Baking Mix

Sold out

Chocolate Beans
250g

£4.64

Mini Marshmallows 180g

£1.00

Wilton Icing Colors
- Sky Blue

£3.35

Shop the proJECT

Get everything you need to bake our ultimate rainbow cake!

Zesty Lemon Cake Baking Mix

Sold out

Chocolate Beans
250g

£4.64

Mini Marshmallows 180g

£1.00

Wilton Icing Colors
- Sky Blue

£3.35


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Why not try some of our fun baking kits and mixes?

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