Forget the beep. Open the oven door (carefully!) and hold your hand near the element. If you feel an immediate, aggressive wave of heat, you’re good to go. Pull your hand back quickly—we’re not making a science experiment out of your fingers. This test takes two seconds and is way more fun than staring at a clock.
Preheat Oven On Broil at Maryjane Hartley blog
Another pro tip: preheat with the door slightly ajar. Most ovens are designed to be closed for baking, but broiling works better if you let a little heat escape. It keeps the element cycling on and staying extra-hot. Just crack it open a few inches and let the magic happen.
The “Cheater’s Method” (Totally Acceptable)
Don’t want to wait even five minutes? You don’t have to. Many chefs recommend putting your food on a cold rack and letting the heat build up around it. This method works especially well for things like steaks or chicken thighs—the gradual warmth helps render fat while the top element goes to town. It’s a two-for-one cooking move.
Just keep an eye on it. Broiling is fast, and it’s the number one way to turn a perfect meal into a smoky mess in thirty seconds flat. Never walk away from a broiler. That’s the only hard rule here.
How to Grill London Broil on a Gas Grill: Easy, Juicy Perfection