Blood orange and poppy seed layer, blood orange curd filling and honey liqueur buttercream frosting
Add all ingredients in a metal or a glass bowl. On a pan with simmering water, place the bowl with the ingredients and whisk slowly.
Keep whisking gently until the curd starts to thicken. Make sure that the bottom of the bowl does not touch the simmering water.
Once the curd starts to thicken, remove from heat. Strain it to remove any blood orange zest or egg white bits that may have been slightly cooked in case the water was too hot or the bowl touched the water.
Store it in a bottle until needed for the cakes, the curd can be stored in the refrigerator for upto 3 weeks.
Preheat the oven to 350°F / 180°C. grease and line the cake tins with parchment.
In a bowl, fitted a paddle attachment on a stand mixer or you can just use whisk/ spatula and a bowl. Add and cream the butter, oil, sugar and the blood orange zest.
Add and beat one egg at a time. Add the yogurt and mix together.
Sift the all purpose flour and baking powder and mix on low speed. Add the blood orange juice as it mixes. Do not over mix the batter.
Fold in the poppy seeds into the batter. Make sure the ingredients are all incorporated.
Divide the batter into 3 pans and bake for about 20 minutes. Once baked, take it out of the oven and cool it on cooling racks.
In a bowl, fitted a paddle attachment on a stand mixer. Cream the butter, add the icing sugar in small batches and whisk.
Add the honey liqueur and add the remaining icing sugar. Beat on medium speed for 2-3 minutes. Until the buttercream is light and smooth.
Divide the buttercream into various little bowls, add the colouring as desired. (this step is totally optional) You can also just use one colour for the entire cake. I used 60% of it for peach colour thats the base crumb coat and the filling. The rest i add patches and use a cake scraper to get the effect.
On a cake board, cake plate. Add a dollop of frosting, place a layer of the cake.
Add a thin layer of frosting on the cake, Pipe a buttercream "dam" around the edges of the cake layer.
Fill the dam with blood orange curd (dont overfill it). Repeat for the other layer.
Place the top layer, facing bottom up. This gives it a flat top.
Give the cake a very light crumb coat, chill in the fridge for 20-30 minutes.
Apply a coat of buttercream and add the patches of coloured buttercream. Place the cake on a turn table and using a cake scraper, scrape the colours around. This gives you a painted effect. It wont be perfect but you can add patches of colours here and there and scrape again. Dont over do it! Imperfection is beauty...
I also added all the leftover colours into a piping bag with a star tip to give it a multi colour effect for the piped design.
Chill for an hour or so before serving so the cake and the curd can set.
Don't be greedy like me and overfill the cake with blood orange curd. Keep the extra curd, you can always spoon on extra curd on your slice ;)