Preheat the oven to 425°F.
Spatchcock the chicken by using a pair of kitchen shears to remove the backbone. Flatten the chicken by pressing down firmly on the breastbone.
chicken
Season the chicken with salt and pepper, ensuring both sides are evenly coated.
salt, black pepper
In a small bowl, prepare the flavored butter mixture. This mixture contains a combination of butter, olive oil, parsley, garlic cloves, lemon zest, salt, and black pepper.
unsalted butter, olive oil, parsley, garlic cloves, lemon zest
Spread the flavored butter mixture under the chicken's skin and all over the chicken, ensuring it is well-distributed.
Prepare the vegetables of your choice, such as medium red potatoes, carrots, and Brussels sprouts.
medium red potatoes, carrots, Brussels sprouts
Arrange the prepared vegetables around the chicken in a roasting pan or baking sheet.
Drizzle olive oil over the chicken and vegetables, and season with salt and black pepper according to taste.
Bake the chicken uncovered in the preheated oven for approximately 45 minutes, or until the internal temperature reaches 160°F. To ensure accurate measurements, you can use an instant-read thermometer inserted into the thickest part of the breast.
Once cooked, remove the chicken from the oven and let it rest for about 10 minutes. This allows the juices to redistribute throughout the chicken.
lemon juice
Serve the spatchcock chicken with the roasted vegetables for a complete and satisfying meal.