Chop broccoli into florets, discarding the stem or using it to make broccoli stem noodles. Place florets onto a baking sheet and drizzle with 2 tbsp olive oil. Shake the pan so that the broccoli is coated, then place it into the oven and roast the broccoli for 20 minutes, or until it's done to your liking.
While the broccoli is roasting, make the sauce ingredients. Whisk soy sauce, honey, sesame oil, and cornstarch together in a bowl and set aside.
Once broccoli is roasted, transfer it to a bowl, then pour the sauce over top; stir to combine. Top broccoli with cilantro, peanuts and red pepper flakes (optional) and enjoy!
Substitution: if you don't have soy sauce, you can use tamari or coconut aminos instead. If you use coconut aminos, reduce the amount of honey to 2 tbsp