Grease and line a slice pan with baking paper

Preheat oven to 175 degrees

Pop butter and sugar into a bowl and beat with an electric mixture until pale and creamy (1-2 minutes)

Add one egg in at a time, beat well

Add in the poppy seed/orange mixture and stir

Add flour and baking powder and fold in

Pour into the slice pan

Bake for 15-20 minutes or until a skewer comes out clean

Cool in the tin for 10 minutes

Carefully turn onto a cooling rack

Ice once completely cool

ICING - simply pop all the ingredients into a blender and blend until smooth

Using a butter knife spread icing onto cooled cake

Slice into bars

I stored them in the fridge