I went to the store today to buy some and a small box was over $1. There is basically 2 cups to a box and when you bake all the time that can add up. Can you take regular granulated sugar and put it in a blender to make superfine sugar?

Yes you can. It will be like grainy powdered sugar.

I never tried that but it sounds logical enough

I have been looking all over my groceries for this type of sugar!!! I guess i'll make it instead of keep looking for it. thanks

A food processor will work better than a blender, lot more room at the bottom instead of the smaller blade and space in a blender.

Rose of The Cake Bible recommends this is a good way to get superfine sugar, so it definitely will work.

Thanks everyone for your response, I really appreciateit!