Preheat oven to 400° and place a baking sheet in the oven while it preheats (make sure it is an unlined baking sheet)
Trim the stem end of the brussel sprouts and remove any outer leaves, them cut the brussel sprouts in half, lengthwise.
Toss the brussel sprouts in the olive oil, salt, and black pepper.
Once the oven has reached 390°, remove the baking sheet and arrange the brussel sprouts face down on the sheet (please do this carefully as the pan will be very hot and make sure the pan is still an unlined sheet. The sprouts should not stick to the pan as they bake and preheating the pan will help to really roast the sprouts)
Place the brussel sprouts in the oven at 400°. Bake for 20 minutes and then flips the sprouts so they are face up. Bake for another 5 to 10 minutes (remove when the sprouts are roasted to your preference. I did the full 10 minutes)
Once you remove the brussel sprouts, heat up the butter in a pan and cook the garlic for about thirty seconds (do all of this on a medium low heat)
Add the honey, herbs de provence, and crushed red pepper. Stir thoroughly.
Immediately add the roasted brussel sprouts and toss until they are coated.
Serve warm!