Many months ago I was given this very fun challenge: Bake a cake for World Ocean Day. I was free to decide how it should look like and what it should taste like, so I took the opportunity to create a blue ombre cake that I had wanted to bake for a long time. I decorated it perfectly ocean themed, and I really like how the result turned out.
Between the layers I put a generous amount of classic butter frosting and sprinkled with blueberries, to give the cake that extra blue kick. I chose to use the butter frosting since this type of frosting is so easy to make and super easy to work with since it keeps it’s shape, which is very important when working with tall cakes like this.
When I had put the cake together I decorated it with starfish, corals, sea shells etc. that I hade made out of fondant. I generally don’t like fondant that much, but I think it’s okay to use in small amounts like this instead of covering a whole cake with it.
So what do you think of the cake? Isn’t it cute? You can use this recipe for many different occasions, and of course not just only for ocean themed cakes. Choose your own colors and use it as an inpiration for baby shower cakes, baptism cakes, birthday cakes and so on.
Blue ombre vanilla layer cake with blueberries (8 servings)
For the cake
640 g all-purpose flour
5 ½ tsp baking powder
170 g butter, room temperature
400 g sugar
Seeds from 2 vanilla pods
3 ¼ dl whole milk
4 egg whites
Blue icing color
- Preheat your oven to 175 ºC (fan).Prepare four springforms, butter the sides, sprinkle with flour and gently knock out the excess flour.
- Sieve flour and baking powder together in a bowl and place the bowl to the side.
- Whisk butter, sugar and vanilla seeds together in a large bowl, until the mixture is light and fluffy.
- Add the flour micture and milk alternately to the bowl with the butter mixture while whisking. Continue until all ingredients are added and the dough is nice and smooth.
- Whisk the egg whites until stiff in a new bowl and gently fold them into the dough.
- Pour the batter in four bowls, making sure there is the same amount in each bowl. Add different amounts of blue color to three of the bowls so that each dough graduates from light blue to dark blue. Pour the batter into the prepared springforms – one color pr springform.
- Put the springforms in the oven and bake for 25-30 minutes.
400 g butter, room temperature
400 g icing sugar
1-2 Tbs cream
Blå icing color
- Pour all of the butter into the bowl of a stand mixer and whisk it thoroughly for 3-5 minutes until the butter is light and airy.
- Add icing sugar one tablespoon at a time while the machine is still whisking at medium speed.
- Once all of the icing sugar has been added, turn the speed up to max and whisk it for another 3-5 minutes until the frosting is white and very fluffy. Add the cream and whisk again.
- Pour the frosting into three bowls with ½ of the frosting in one bowl and ¼ of the frosting in each of the two other bowls. Let the largest portion of frosting remain white and add blue color to the two other bowl making sure one portion of frosting is light blue and the other portion is dark blue.
Assembling the cake
- Cut the risen top of the cakes so that their surfaces are flat and horizontal.
- Place the darkest of the cakes on your cake stand and add some white frosting on top of it. Make sure the frosting is spread out evenlly with a palette. Sprinkle with blueberries and repeat with all of the remaining layers.
- Add a thin layer of the white frosting to the surface of the entire cake. This “crumb coat” is to make sure all crumbs are securely sealed and also to make sure that your cakes surface is nice and evenly covered with frositng. Place the cake in your fridge for about 15-30 minutes.
- Once the frosting is cold and has set, you can start adding your final layer of surface frosting to the cake. Begin with the lower layer of dark blue frosting. Then add a layer of light blue frosting and finalle top the cake with the white frosting.
- Smooth out the frosting with a palette or spatula, making sure the colors blend nicely into each other.