how many cups are in a one pound box of confectioners sugar?
21/4cups
2
About 1.7 cups
4
4 cups equal 1pound of powered sugar. I measured a new bag.
how many cups are in a pound of brown sugar
You're trying to compare weight and volume. It doesn't really work properly. A pound is 16 ounces, and a cup is 8 fluid ounces, so you would expect a pound to be 2 cups. The problem is that the density of the sugar is a variable. If you pack the sugar into the measuring cup, it will weigh more, thereby coming out to more than a pound in weight.
That is about 1/3 cup.
2
There is approximately 2 cups of lactose sugar in one pound of sugar. However, there is 3 3/4 cups of confectioners sugar in one pound.
3 1/2 cups confectionery sugar = 1 pound answerd at http://www.bellaonline.com/articles/art1734.asp :) sn