Marshmallows have a tendency to become hard and stale over time. To restore their freshness, place the stale marshmallows and one slice of white sandwich bread in an airtight container. After 24 hours, the marshmallows will be soft and ready for snacking or floating on hot chocolate.
Sure, you can try to eat an entire tin of soft, chewy cookies before they grow stale and harden—or you can store them along with tortillas and parchment paper. The tortillas fit tidily into the tin, where their moisture keeps cookies soft for days. Start by tracing the bottom of a cookie tin on a sheet of parchment paper, then cut it out and repeat as needed. Layer the parchment, a tortilla, parchment, and layer of completely cooled cookies in the tin. Repeat until the tin is full, ending with a layer of cookies.
All honey hardens and crystallizes over time, but there’s no need to toss it. To bring honey back to its translucent, liquid state, just place the opened jar in a saucepan filled with about an inch of water and place over very low heat, stirring often, until the crystals melt. Alternatively, heat the opened jar in the microwave on high power in 10-second increments, stirring intermittently, until it has liquefied. Once cooled, use the honey or screw the lid back on for storage. Like these? See more quick tips at Cook's Illustrated.