Colorful piped frosting on a Rainbow Funfetti Sheet Cake with recipe ingredients list visible below

Rainbow Funfetti Sheet Cake recipe

A gorgeous funfetti Madeira sponge baked in a sheet tin and topped with a rainbow of Swiss meringue buttercream in every colour. Covered in sprinkles and piped with your favourite nozzles — endlessly fun and showstopping.

  • Difficulty
    3 out of 5
  • Prep: 40 minutes
  • Cook: 25 minutes
  • Servings: 16-20 slices
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Ingredients

FUNFETTI MADEIRA SPONGE
270g soft unsalted butter
270g caster sugar
4 eggs
255g plain flour
55g self raising flour
1 tbsp whole milk
1/2 tsp vanilla extract
75g rainbow sprinkles

SWISS MERINGUE BUTTERCREAM
110g egg whites
225g caster sugar
310g soft unsalted butter
1/2 tsp vanilla extract
Pinch of fine sea salt
Oil or gel-based food colouring

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This delightful Rainbow Funfetti Sheet Cake is the perfect treat for any occasion! Bursting with vibrant colours and sprinkles, this cake is sure to bring a smile to anyone's face.

This recipe is easy to make and fun to bake. With simple ingredients like flour, sugar, butter, vanilla extract, eggs, and rainbow sprinkles, you can whip up this delicious cake in no time.

The moist and fluffy sheet cake is topped with a creamy vanilla buttercream frosting and even more sprinkles for an extra pop of color. Whether you're celebrating a birthday, hosting a party, or just craving a sweet treat, this Rainbow Funfetti Sheet Cake is sure to be a hit.

Download our recipe now and get ready to bake up a storm of deliciousness with this Rainbow Funfetti Sheet Cake that will be loved by kids and adults alike. Enjoy the fun and festive flavors of this colorful cake and watch as it becomes a family favorite in no time!