Quickly soften brown sugar by microwaving it for several seconds in a bowl covered with a damp paper towel. Store the softened brown sugar with apple slices to help keep it soft.
- Prepare the brown sugar
Place the hardened block of brown sugar in a bowl large enough to contain the granules after they've softened and separated. Cover the bowl with a damp paper towel.
- Microwave the brown sugar
Place the bowl in the microwave. Microwave the brown sugar for 20 seconds. Remove the bowl, and break up the block with a fork. Repeat this process until the sugar has softened.
- Store the brown sugar
Place the softened brown sugar in a plastic or glass container with a tight-fitting lid. Add several apple slices to the sugar before sealing the container.