55gUnsalted ButterBrowned (see notes), Browning is optional. If not browning, use melted butter
55gVegetable OilOr any flavourless oil
1largeEgg
125gMilk
1tbspPineapple JuiceI used the juice from a pineapple tin
1tspLime Juice
Buttercream
170gUnsalted ButterRoom Temperature. I sometimes brown the butter. (See notes)
1tbspPineapple JuiceI used the juice from a pineapple tin
PinchSalt
370gIcing Sugar
1.5tbspDouble Cream
Optional Toppings
Pineapple Chunksfrom a tin
Lime Zest
Coconut Flakes
Instructions
Preheat oven to180 °C/Gas Mark 4.
Line 2xs 4 inch tins with greasproof paper.
Combine dry ingredients (flour, sugar, baking powder,salt) in a bowl.
Add butter, oil, and egg into the dry ingredients and whisk until combined. Add the milk and pineapple juice, and mix until just combined.
Divide the batter between the tins and bake for 40 minutes or until a skewer inserted into the middle comes out clean.
Allow the cakes to cool for 15 minutes, then run a knife around the inside of the cake tin edges before putting into the freezer.
Place cakes into the freezer for 25 minutes and once cooled, carefully remove the cakes from the tins.
Whilst the cake layers cool, make the buttercream frosting by beating the butter on medium low for 30 seconds until smooth, add the pineapple juice and salt.
Slowly add in the icing sugar before adding the cream. Continue to mix on low for a few minutes, until your desired consistency is reached.
Stack and decorate cake layers on a small plate by adding an even layer of buttercream between cake layers and around the cakes with an offset spatula. Put the cakes in the freezer for 10 minutes. Add a second, thicker layer of buttercream to the cake, and smooth using a scraper. Then decorate as you wish.
Optioanl Topping
To use caramalised pineapple chunks, I add the chunks and some brown sugar to a pan on medium high and just cook till it begins to brown. Add to the top of the cake with lime zest and toasted coconut flakes.
Notes
How to brown butter - Melt the butter in a pot over medium heat. Swirl the pan occasionally to ensure the butter is cooking evenly. As the butter melts, it will begin to foam and then smell nutty when it begins to brown. Once you smell that nutty aroma, remove the pot off the heat and transfer too a heatproof bowl.Buttercream - I sometimes use browned butter to make the buttercream in this recipe but it is optional. The reason I say this is because it extends the time quite a bit. So after browning the butter, I put it in the fridge for 3 hours and then beat it and continue as per the buttercream recipe above.Storage -You can make this cake in advance and freeze the layers and then thaw and decorate when needed.You can make the buttercream 2 - 3 weeks in advance and keep it in an airtight container or freeze it for up to 3 months. If you have decorated it already, you can keep it in the fridge for up to a week or in the freezer for up to a month.Flavours - You can swap out the Lime and Pineapple in this recipe for Vanilla, Lemon or any extract flavour you like. You can add spices to the batter too. A small amount of choc chips will work well as will nuts. You can skip the browning of the butter altogether. Yoghurt/Buttermilk/Sour Cream/Milk - These are interchangeable so if you don't have one, use another.Oil - Use any flavourless oil in this recipe.