- 1 head broccoli, cut into florets
 - 1/4 cup olive oil, or more to taste, divided
 - 2 teaspoons lemon zest, divided
 - salt and ground black pepper to taste
 - 2 tablespoons lemon juice
 - 2 cloves garlic, minced
 
- Preheat oven to 450 degrees F (230 degrees C). Line a baking sheet with parchment paper.
 - Place broccoli in a bowl and drizzle with a little olive oil; top with 1 teaspoon lemon zest and season with salt and black pepper.
 - Roast in the preheated oven until browned, 15 to 20 minutes. Cool until warm.
 - Whisk lemon juice and garlic together in a small bowl; slowly drizzle in remaining olive oil while whisking rapidly until dressing reaches desired consistency. Season with salt and black pepper. Toss broccoli and dressing together in a bowl until coated.