📖 Instructions

1. **Prepare the Pesto (If Making Homemade):** In a food processor, combine 2 cups fresh basil leaves, 1/2 cup grated Parmesan cheese, 1/2 cup pine nuts (lightly toasted for extra flavor if you have time!), 2-3 cloves of garlic (depending on how much you love garlic!), and 1/2 teaspoon salt. Pulse a few times until roughly chopped. With the food processor running, slowly drizzle in 1/2 cup of extra virgin olive oil until a smooth, bright green pesto forms. Taste and adjust salt and pepper if needed. Set aside.
2. **Prep the Chicken:** Lay your chicken breasts on a clean cutting board. If they are very thick (over 1 inch at their thickest point), you might want to carefully butterfly them or pound them to an even 1/2 to 3/4 inch thickness. This ensures even cooking and prevents dry spots. Gently pat the chicken dry with paper towels—this helps get those lovely grill marks! Season both sides generously with salt and black pepper.
3. **Marinate the Chicken:** In a shallow dish or a zip-top bag, place the seasoned chicken breasts. Add about 1/4 cup of the pesto (or store-bought pesto if using) to the chicken, making sure to coat each piece evenly. Gently massage the pesto into the chicken. Cover the dish or seal the bag and let it marinate in the refrigerator for at least 30 minutes. If you have more time, 2-4 hours is even better for deeper flavor, but don't go much longer than that, especially with homemade pesto, as the basil can start to change color.
4. **Preheat Your Grill:** While the chicken is marinating, preheat your grill to medium-high heat (around 400-450°F or 200-230°C). If you're using a gas grill, this usually means turning two burners to medium-high. For a charcoal grill, arrange coals for direct grilling. Make sure your grill grates are clean—a wire brush works wonders—and then lightly oil them with a high-smoke point oil like canola or grapeseed. This prevents sticking and helps create those perfect grill marks.
5. **Grill the Chicken:** Carefully place the marinated chicken breasts on the hot, oiled grill grates. Close the lid and cook for 4-6 minutes per side. Resist the urge to constantly flip the chicken! Let it cook undisturbed for a few minutes to develop a nice crust and good grill marks. You’re looking for a beautiful golden-brown color with visible char marks.
6. **Check for Doneness and Rest:** After 4-6 minutes, flip the chicken and cook for another 4-6 minutes on the second side. The exact timing will depend on the thickness of your chicken and the heat of your grill. The most accurate way to check for doneness is using an instant-read meat thermometer. Insert it into the thickest part of the chicken; it should read 165°F (74°C). Once cooked, transfer the chicken to a clean plate or cutting board. This step is super important: tent it loosely with foil and let it rest for 5-10 minutes. This allows the juices to redistribute throughout the meat, keeping it incredibly tender and juicy. Don't skip this part!
7. **Serve with Fresh Pesto:** Just before serving, spoon or brush a generous amount of the reserved fresh pesto over each grilled chicken breast. You can also slice the chicken against the grain and toss the slices with more pesto. Garnish with a few fresh basil leaves, maybe some halved cherry tomatoes, and a sprinkle of extra Parmesan cheese. Serve immediately with your favorite sides, like roasted vegetables, pasta, or a simple green salad. Enjoy the amazing flavors!
8. **Clean Up:** While it might not be the most fun part, make sure to clean your grill grates while they're still warm. It makes future grilling sessions so much easier!