Stage 1: Aromatic Foundation Prep : In a large non-reactive bowl, combine the minced garlic, chopped fresh rosemary, chopped fresh mint, dried oregano, lemon zest, black pepper, and sea salt. Use a fork to lightly mash the ingredients together, releasing their essential oils.
Stage 2: Crafting the Citrus-Herb Infusion : Pour the extra virgin olive oil, fresh lemon juice, and red wine vinegar into the bowl with the aromatics. Whisk vigorously for 30 seconds until the mixture is emulsified and slightly thickened. This is your flavor infusion.
Stage 3: The Marination Phase : Add the cubed chicken breast to the bowl, ensuring every piece is thoroughly coated in the infusion. Cover the bowl tightly and refrigerate for at least 1 hour, or up to 4 hours for deeper flavor penetration. Do not marinate longer than 4 hours, as the citrus will begin to negatively affect the texture of the chicken.
Stage 4: Vegetable & Skewer Assembly : Preheat your grill to medium-high heat (approx. 400-450°F or 200-230°C). While the grill heats, thread the marinated chicken and chopped vegetables onto your skewers. Create a repeating pattern, such as onion, bell pepper, chicken, zucchini, cherry tomato, ensuring a colorful and balanced skewer. Leave a small space between items to promote even cooking.
Stage 5: High-Heat Searing & Grilling : Lightly oil the grill grates. Place the assembled skewers on the hot grill. Cook for approximately 12-15 minutes, turning the skewers every 3-4 minutes to cook all four sides. The skewers are done when the chicken reaches an internal temperature of 165°F (74°C) and the vegetables are tender with a light char.
Stage 6: Final Rest & Garnish : Transfer the cooked skewers to a clean platter. Let them rest for 5 minutes; this allows the juices in the chicken to redistribute, ensuring maximum tenderness. Serve immediately, garnished with extra fresh mint or lemon wedges if desired.