Trim chicken, pound breasts to even ¾-inch thickness, pat dry
Whisk orange juice, lime juice, lemon juice, and olive oil
Add garlic, cumin, oregano, salt, pepper, paprika, red pepper flakes. Whisk well
Place chicken in zip-top bag or dish, pour marinade over, coat completely
Seal bag, massage marinade into chicken
Refrigerate 4-12 hours (8-10 hours ideal), turning occasionally
Remove from fridge 30 minutes before cooking
Remove chicken from marinade, let excess drip off, discard marinade
Grill: Preheat to medium-high (400-450°F), oil grates. Grill 6-7 minutes per side until 165°F internal
Pan-sear: Heat 2 tbsp oil in skillet over medium-high. Cook 6-7 minutes per side until 165°F
Bake: Preheat oven to 400°F. Bake on parchment-lined sheet 20-25 minutes until 165°F
Rest 5 minutes before slicing
Slice on diagonal, garnish with cilantro, serve with lime wedges