This show-stopping cake is easy to prepare and makes a spectacular centrepiece. Slice into the cake to reveal the beautiful coloured layers.
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5 from 2 votes

Coconut and Vanilla Naked Cake with Mascarpone Frosting

This show-stopping cake is easy to prepare and makes a spectacular centrepiece. The recipe contains only egg whites which results in a mostly white sponge which can be coloured with gel or paste food colouring to create a beautiful surprise when you slice into the cake.
Prep Time15 mins
Cook Time25 mins
Total Time40 mins
Course: Cake
Cuisine: American
Keyword: Rainbow Cake, White Cake Recipe
Servings: 10 servings
Calories: 702kcal
Author: Lucy Parissi


For the cake

  • 350 g | 12.4oz caster sugar
  • 220 g | 7.7oz plain flour
  • 30 g | 1oz cornflour (cornstarch)
  • 170 g | 6oz | 1 1/2 sticks unsalted butter cubed
  • 240 ml | 8.4fl oz | 1 cup coconut milk or whole milk
  • 180 ml | 6.3fl oz | 3/4 cup liquid egg whites or use the egg whites from 6 eggs
  • 2 tsp coconut extract
  • 1 tsp vanilla extract
  • 2 tbsp desiccated coconut optional
  • 4 tsp baking powder
  • 1/2 tsp salt
  • assorted gel or paste food colouring pink, purple, blue, optional
  • a little butter and flour to grease the cake tins or cake release spray

For the frosting

  • 300 g | 10.5oz full-fat mascarpone
  • 300 g | 10.5oz icing sugar
  • 250 ml | 8.5fl oz double cream
  • 2 tsp vanilla extract
  • 1 tsp coconut extract

To decorate

  • mini eggs
  • chocolate eggs
  • sugared almonds
  • fresh flowers make sure they are not sprayed or use edible flowers
  • pastel sprinkles
  • macarons


  • Put the (empty) bowl of your stand mixer on the scales and make a note of the weight.
  • Preheat the oven to 180C. Grease 4 x15cm/6in cake tins (or 3x20cm/8in tins) and line with greased baking parchment. Dust with flour, shaking out any excess.
  • Put the flour, cornflour, sugar, desiccated coconut, baking powder and salt in the bowl of your stand mixer and briefly whisk together on low speed to combine.
  • Add the cubed butter and mix on low speed until the mixture resembles coarse sand.
  • In a measuring jug, mix together the milk, egg whites, coconut and vanilla extracts.
  • Add the egg white mixture into the batter, in three stages, mixing well on low speed after each addition. Increase the speed and mix for a couple of minutes until batter is smooth.
  • Weigh your (full) mixing bowl again and subtract the weight of the empty bowl. Divide the weight of the batter into 3 or 4 depending on how many cake tins you are using.
  • Pour equal amounts of batter into 3 (or 4) separate bowls and add food colouring. It is best to start with a very small amount of food colouring on the tip of a skewer, mix well, and then increase the quantity of food colouring gradually to intensify the colour.
  • Pour the batter into the prepared tins and bake for 20-25 minutes or until the cakes are well risen, firm on top and coming away from the sides of the tin. A skewer inserted in the centre should come out clean.
  • Cool in the tins for 10 minutes and then carefully turn out on a wire rack lined with baking paper (the cake layers are quite sticky). Cool completely before frosting and level if necessary.
  • To make the frosting, put the mascarpone, icing sugar, double cream and vanilla extract in the bowl of your stand mixer. Start mixing on low speed to combine, then increase the speed to highest setting until you have firm peaks. Do not over-mix.
  • Transfer the frosting into a large piping bag fitted with a plain round tip and pipe the frosting on your bottom cake layer. Outline the edge of the sponge first and then continue filling the interior in an even layer.
  • Repeat with the remaining layers. Smooth some frosting over the entire cake with a palette knife or pastry scraper and chill for 20 minutes.
  • Add a final layer of frosting over the cake, smoothing so that the layers are still visible for a ‘naked cake’ effect. Alternatively you can cover the cake completely and pipe any excess frosting on top.
  • Decorate with mini eggs, fresh flowers, pastel sprinkles or decorations of your choice. Best consumed within a couple of days.* recipe adapted from Cooks Illustrated


Calories: 702kcal | Carbohydrates: 88g | Protein: 9g | Fat: 36g | Saturated Fat: 23g | Cholesterol: 93mg | Sodium: 519mg | Potassium: 302mg | Fiber: 1g | Sugar: 66g | Vitamin A: 1350IU | Calcium: 128mg | Iron: 1.7mg