A standard 12-cup muffin tin. This is essential. Look for sturdy metal, ideally with a non-stick coating—or plan to use paper liners. If you only have a jumbo muffin tin or mini muffin tin, you'll need to adjust baking time significantly (jumbo: add 8-10 minutes; mini: subtract 5-7 minutes). A standard tin is your best bet for following this recipe exactly.
Two mixing bowls—one large, one medium. Any bowls you have at home work perfectly. Glass, ceramic, metal—it doesn't matter. Just make sure one is noticeably larger than the other so you have room to whisk without splashing batter everywhere.
A whisk (or fork if that's what you have). A proper whisk incorporates air and combines ingredients more evenly, but I've made these muffins with a fork in a pinch. A whisk just makes it slightly easier and faster.
Measuring cups and spoons. These are essential for accuracy. Measuring by weight (using a kitchen scale) is even better if you have one, but measuring cups work beautifully—just remember to spoon flour into the cup and level it off rather than scooping directly from the bag, which packs the flour and throws off your measurements.
A cake tester or toothpick. Optional but genuinely helpful. A thin wooden skewer or even a toothpick works perfectly to test doneness. If you don't have one, a clean knife works fine.
A cooling rack. Optional. If you don't have one, you can cool the muffins right on the counter or even on a clean kitchen towel.