Frank103 wrote:
>
> The recipe for potato doughnuts recently put on this board called
> for a cup of castor sugar. I don't have castor sugar. Can I use
> powder sugar or regular sugar instead? Is there any adjustment
> to the recipe needed? Thanks in advance.

Regular sugar, not powdered. Powdered sugar has
added starch. Castor sugar is more similar to
superfine granulated sugar. If you have a Magic
Bullet, you could grind regular granulated sugar
to a finer particle size.