If you’re a grilling fanatic, you already have aluminum foil. This is the laziest method ever. Simply wrap the cut half completely in foil—like a little tinfoil burrito. No gaps, no shame.
Foil is a moisture and odor magnet. It keeps the onion from drying out and stops your fridge from smelling like a tearful cafeteria. Bonus: you can throw the whole thing on the grill later. It’s a two-for-one deal.
Just remember: foil can react with acidic foods over time, so use it within a week. But let’s be honest, you’ll probably eat it before then.
