
1. Preheat oven to 400 degrees F.
2. Trim ends from brussels sprouts and cut them in half lengthwise. Place in a medium bowl and toss with a drizzle of olive oil, salt and pepper.
3. Pour onto a baking sheet, cut side down, and bake for 20 to 25 minutes depending on size. Stir once. They should be tender with some of the outer leaves starting to turn dark and crispy.
1. Preheat the oven to 425 degrees F.
2. Take the whole heads of garlic and cut the tops off to expose the garlic cloves. Place on a large piece of aluminum foil and drizzle lightly with olive oil and sprinkle with salt and pepper. Wrap up the foil into a tight pouch, and then place in the oven and roast for 40 minutes. Remove from oven and allow to cool. Squeeze the pulp from the skins.
3. In a food processor, combine the roasted garlic, mayonnaise, lemon juice, Parmesan, Dijon mustard, cayenne pepper, Worcestershire sauce and some salt and pepper. Pulse until well combined. Refrigerate to allow the flavors to meld together. Garnish with lemon zest and parsley.
Make ahead tip: Aioli can be made a day ahead and refrigerated.