cake stuff super duper white is the best Ive tried for butter cream. i always struggle to get buttercream white because of the butter i use but this whitener works brill
we use free range eggs and yolks can sometimes be really bright so getting white buttercream can be difficult. we've tried a few whiteners and this has been the best one for us. good value too when you've lots of cupcakes to decorate! Xx
We have a small artisan cake company and make a lot of cupcakes so go through a lot of buttercream. We don't like using cheaper fat or marg so always use proper butter but it can be difficult to get the buttercream really white. This is the best we've tried and a fraction of what we paid for another brand. Happy days!