Whisk together 1/2 cup orange juice1 tablespoon orange zest, 1/4 cup lime juice, 2 tablespoons lime zest, 1/4 cup vegetable oil, 4 cloves garlic, 1/2 teaspoon salt, 1/2 teaspoon black pepper, 1/2 teaspoon dried oregano, and 1/2 teaspoon paprika in a large mixing bowl.
Place 4 large chicken breasts in a gallon-sized ziptop bag. Pour in the marinade. Seal the bag and work the marinade over the chicken. Refrigerate for at least 2 hours (up to 6 hours).
Preheat the grill. Remove the chicken from the marinade and cook for 5 to 7 minutes per side, flipping once. Check to ensure chicken has reached an internal temperature of 165 degrees F. Remove from the grill and let rest for 5 minutes.
Transfer the chicken to a serving plate. Garnish with orange and lime slices and fresh parsley if desired. Serve warm.
Notes
I like to use thin-cut chicken breasts or butterfly regular chicken breasts in half to cut down on cooking time. They’ll need about 3 to 4 minutes per side.
Do not marinate longer than 6 hours. The citrus juice can start to break down the chicken and make the outside texture mushy.
This marinade also works with chicken thighs or tenders. Adjust the cook time as needed and always cook chicken to 165 degrees F.
You can bake this chicken for about 24 minutes at 400 degrees F or cook it in a large skillet over medium heat for about 10 minutes, flipping once.