Preheat oven to 160C/fan and then grease or line the cake tin (you'll need 1 or 2 cake tins 8x8 inch, depending on whether you make 1 or two cake layers)

In a bowl add the ingredients FOR ONE TIER one by one in the order stated above, mixing as you go.

Once the mixture is smooth (airy with a few bubbles is ok) pour it into the lined cake tin.

Put the cake into the preheated oven for 15 mins, then take out and turn the tin around and put back in for another 18 mins.

To test if the cake is cooked insert a tooth pick into the dome of the cake, if it comes out clean the cake is ready. It should be golden brown on top!

Leave the cake to cool for about ten minutes in the tin then transfer onto a cooling rack for another 10-15.

Repeat steps 1-6 for the second cake tier.

Whilst the cakes are cooling prepare the buttercream: Using a whisk, whisk the butter,adding the icing sugar slowly, then when you've added all the icing sugar whisk in the lemon juice and rind.

When the cakes have each cooled use a pallet knife ~ or flat knife~ to spread HALF of the buttercream onto ONE cake.

Then carefully place the other cake on top (BEWARE OF ANY BUTTERCREAM SEEPING OUT THE SIDES)

Use the remaining buttercream for the top of the cake then decorate with icing sugar and raspberries (optional)