Preheat the oven to 400°F
Remove the loose outer leaves from the sprouts.
Trim a thin slice off the stem end and cut in half
Spread the sprouts out on a sheet pan in a single layer. Very lightly coat with high heat oil spray. Roast for 20-25 minutes or until the sprouts begin to brown.
While the sprouts are roasting get the good stuff going! Place the butter, salt, garlic, vanilla extract and sweetener in a small pot.
Use a sharp-pointed knife to cut a lengthwise slit in the vanilla bean pod. Open up the slit and scrape out the sticky seeds from the inside.
Add the vanilla seeds and the whole pod into the pot. Heat over a very low flame for 2 minutes and stir. Turn off the flame, and allow it to sit.
Once the sprouts are done roasting, place them in a large bowl. Gently reheat the butter mixture and remove the vanilla pod. Pour over the sprouts, toss and enjoy!