Preheat the oven 180degrees,prepare your baking tins;grease them

In a bowl whisk butter and sugar till its fluffy and has to change its colour,sieve the flour,bicarbonate of soda and baking powder

Add in the egg yolks as you whisk the mix

In a separate mug whisk the egg whites till it becomes a thick foam

Fold in the flour in the earlier mixture as you add in milk gradually,add 3drops of strawberry essence

Add in the lemon juice and the zest in the cake mixture as you fold in

Fold in the egg yolks gentle till they uniformly mix

If need be add the green color at your preference

Pour the batter in a well greased baking tin and place it in the oven