. The additional heat means the broccoli cooks a touch faster than at the lower temperature. This helps with caramelization but also means your broccoli stays crisp, preventing it from getting mushy and overcooked. 

The best way to ensure an even roast is to cut your broccoli into uniform pieces. That doesn’t mean breaking out your ruler; just eyeball it. Uniform pieces mean everything will cook at about the same rate. So, if you prefer larger bites, go for it, but make sure the rest follow suit, and adjust your roasting time accordingly.

Roasting broccoli isn't just about the temperature and size of the florets. You should also consider your oven and the pan you're using. First, it’s good to know your oven since all of them operate a bit differently. Find out if your oven runs hot or cold, and adjust your heat accordingly.

Also, give the oven plenty of time to preheat. Even after it beeps that it's ready, your oven will often need a few additional minutes to truly be at that temperature. Get an oven thermometer to help!

Another trick I've learned from a lot of experience is to slide your baking sheet into the oven before you preheat it. Adding your raw broccoli to a hot pan speeds up the cooking and caramelization process.

Finally, stir your broccoli at least once during roasting so that everything cooks evenly.