Best: the skillet method
- Heat a dry nonstick or cast-iron skillet over medium heat.
- Put the slice in and cook 2 to 3 minutes until the bottom is crisp.
- Add a few drops of water to the pan, away from the slice, and cover with a lid for about 1 minute so the steam melts the cheese.
Oven or air fryer
- Oven: preheat to 450 degrees F with a sheet pan inside, put the slices on the hot pan, and heat 5 to 8 minutes.
- Air fryer: 350 degrees F for 3 to 4 minutes. Check early; thin slices go fast.
- Microwave: avoid it if you can. It warms the cheese but makes the crust soft and chewy.
How long does leftover pizza keep?
Refrigerate leftovers within 2 hours and eat them within 3 to 4 days, following USDA leftovers guidance. Store slices in a sealed container or wrapped so they do not dry out.
