PREP: Preheat the oven to 400°F. Trim any browned stem pieces or leaves off from sprouts. Slice brussels sprouts lengthwise through the stem end. Line a baking sheet with foil or parchment paper and spray with cooking spray.
ROAST: Toss sliced brussels sprouts with olive oil, and salt and pepper to taste. Spread them out evenly on a baking sheet, cut side down. Roast for 20-30 minutes until they are fork tender on the inside and crispy on the outside.
GLAZE: While the sprouts are in the oven, whisk together the ingredients for the glaze.
TOSS: Toss roasted brussels sprouts with the glaze and serve immediately.
Notes
If your brussels sprouts are all different sizes, try to cut them to similar sized pieces. You can cut large ones into quarters and leave smaller ones whole.
The key to roasting vegetables is to use a big enough baking sheet that they can have some space to spread out in an even layer. This promotes crisping and browning. If they are too close together, they will steam instead. I use a large baking sheet like this one, but you can also use twosmaller half sheets instead.
If you want to save a step, you don’t have to flip the brussels sprouts halfway through roasting. Just make sure to put them all cut side down to start with for optimal crispiness.
How to store leftovers: Store leftovers in an airtight container in the refrigerator for 4-5 days. They are best fresh.
I don’t recommend freezing this recipe.
Reheat sprouts in a skillet until warm, or microwave.
Make ahead: I don't recommend roasting the brussel sprouts ahead of time, as they are best when fresh out of the oven and crispy. You can prepare the glaze a day or 2 ahead of time and store in an airtight container in the refrigerator.