A 16-ounce box of powdered sugar contains about 3 1/2 to 4 cups, depending on how tightly it’s packed. Powdered sugar is pretty fluffy, so the exact measurement can vary slightly. If you’re baking.
A 16-ounce box of powdered sugar contains about 3 1/2 to 4 cups, depending on how tightly it’s packed. Powdered sugar is pretty fluffy, so the exact measurement can vary slightly. If you’re baking.