This is so simple to make in the Thermomix. I have copied the recipe as I found it but I do cut down on the sugar.
120 g butter (softened)
120 g self-raising flour
60g dessicated coconut
1 heaped tsp baking powder
180g caster sugar
2 large eggs
grated rind of large lemon
juice 1 lemon
120g caster sugar
Preheat oven to 180C
Grease and line 18cm baking tin.
Put all cake ingredients together into the TMX in the order above and process for 10 seconds speed 4 or until just combined.
Pour mix into the baking tin and bake for 20-25 minutes.
For the topping, mix the lemon juice and sugar and spoon onto the cake while hot.
Leave in tin to cool before turning out.