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Blue Ombre Cake
Blue Ombre Chocolate Layer Cake
The cake is quite a simple chocolate one. Dress it up with buttercream and icing to make a spectacular celebration cake. I have use Swiss Meringue Buttercream in my layers. You can use any filling you like. I use the Swiss buttercream because it lasts very well at room temperature and it is very important to have your cake at room temperature. It tastes better. You could also use the cream cheese icing to fill though if you like.
Blue Ombre Cake
Blue Ombre Chocolate Layer Cake
The cake is quite a simple chocolate one. Dress it up with buttercream and icing to make a spectacular celebration cake. I have use Swiss Meringue Buttercream in my layers. You can use any filling you like. I use the Swiss buttercream because it lasts very well at room temperature and it is very important to have your cake at room temperature. It tastes better. You could also use the cream cheese icing to fill though if you like.
Ingredients
Chocolate cake- You will need to make this recipe twice in order to make 4 layers ( or two cakes cooked in two pans , twice)
  • 500ml coffeeI use 2 cups instant coffee
  • 600gm caster sugar3 cups
  • 250gm butter softened
  • 50gm dark cocoa
  • 1teaspoon bicarb soda
  • 4teaspoon baking powder
  • 4whole eggs
  • 450gm plain flour3 cups
  • 5gm salt
Milk Chocolate Swiss Meringue buttercream| Makes about 7-8 cups enough for 4 layers of filling
  • 300gm caster sugar
  • 80ml water
  • 5whole egg white
  • 450gm butterroom temperature, chopped
  • 400gm milk chocolate
  • 1teaspoon salted caramel flavouring
Cream Cheese frosting. ( to cover this 4 layer cake you will need to double this recipe*)
  • 250gm cream cheeseRoom temperature
  • 500gm butterroom temperature
  • 250gm icing sugar mixture2 cups
  • 5ml vanilla
White chocolate glaze for the top
  • 300gm white chocolate chocolate
  • 100ml cream
  • 1teaspoon glucose
  • 1tube royal blue food colouring
Instructions
  1. set the oven 180 F/ 350 F. Then you’ll need 2 x 23 cm /10 inch cake tins with removable bottoms, fully greased and lined with baking paper. Clear space in the fridge to chill your cake. You will need 5 zip lock bags or piping bags to make the Ombre coloured sides. A thick heavy cake board (approx 16 in), a pallet knife, and roll out icing for decorations. optional*
Make this recipe twice for a 4 layer cake
  1. Put the coffee, sugar, butter, and cocoa in to a pot. Set over a low flame and stir till just melted. Cool to just warm.
  2. Whisk the eggs and add to the mix followed by the sifted flour, baking powder, soda and salt. Stir till combined.
  3. Pour the batter into two tins, halved exactly and bake for approximately 50 minutes or until a skewer inserted into the middle comes out clean.
  4. Transfer to a cooling rack and stand for 10 minutes. Run a knife around the tin and remove. Cool. repeat.
  5. Cool and then chill the cake layers.
Swiss Meringue Buttercream
  1. Melt the chocolate and set aside.
Make sure you thoroughly clean your whisk and bowl or handheld whisk to remove all traces of grease/oil.
  1. Whisk together sugar and egg whites in a heatproof mixing bowl. Place over a pot of simmering water; whisk constantly until sugar is completely dissolved, 2 to 3 minutes. Remove from heat. With an electric mixer, whisk on high speed until cool (test by touching bottom of bowl), 7 to 10 minutes.
  2. Change the whisk to a paddle and beat in the butter a piece at a time. The buttercream will eventually be silky and smooth but at one point during the mixing the mixture will look like scrambled egg but just keep going till it is smooth. Beat in the cool chocolate and the caramel flavouring.
  3. Divide this between the layers evenly. ( you can sprinkle the layers with crushed praline or nuts for crunch). Chill the cake till firm for the best results 24 hours if possible,
Cream Cheese Frosting
  1. Beat the butter till light and fluffy then add the cream cheese and keep beating till very airy and light. Add the sugar and mix on low till incorporated add vanilla and then beat till light. (about 10 minutes)
  2. Put a cup and a half of icing into 4 separate bowls colour these in increasingly dark shades of blue ( start with 1 dropin the first bowl, 2 drops in the next 3 drops and four and so on , then go on from here achieving the varied colours you want).
  3. Cover the cake with the rest of the cream cheese icing as a crumb coat. Smooth over very well, and make sure it is not too thick. chill
  4. Using a piping bag or zip lock bag with a whole cut in the corner pipe two lines of each colour around the cake ( see the video below) Starting with the darkest colour. Smooth around the cake making the icing nice and smooth, pipe on more icing to fill any gaps in each colour. Smooth the sides wiping off excess blue coloured icing into a bowl as you go. You will end up with a nice smooth sided cake. Chill again.
Coloured Chocolate drizzles
  1. Heat the cream and glucose then add the colouring and stir ( don’t add colouring to plain chocolate it will not work! ). Add the chopped chocolate to the cream and stir to melt and combine. I like to try and make the drizzle the same colour as the darkest base colour.
  2. Put enough chocolate on the top to just smooth over to the edges of the cake with out over flowing and then add a bit more so that it just drips down the sides and you have control over it. You can add a little extra icing to a zip lock bag and put a tiny whole in it. Drizzle a little extra chocolate around the edge and smooth down.. Chill
  3. transfer the cake to a cake board. I have decorated mine with roll out icing and hearts but you could just put it on a plain board Lift the cake with several cake smoothers onto the board.
  4. decorate the cake with anything you like. i have used varying sizes of coloured icing and cut out hearts.
To make glue. Mix 1/2 an egg white and 1 drop of lemon with sifted icing sugar till you have a nice thick paste.
  1. The cake can be left at room temperature at least 6 hours before you want to serve it.

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