Slice chicken breasts in half horizontally. Add to zipbag or container for marinating. Add marinade ingredients to a jar and shake vigorously. Pour marinade over the chicken breasts. Smoosh the chicken breasts and marinade around to ensure that it gets in between all the pieces. Store in the refrigerator for at least 8 hours or overnight.
4 chicken breasts, ½ cup olive oil, 3 tbsp garlic, ¼ cup white balsamic vinegar, ¼ cup lemon juice, 1½ tbsp dried oregano, 1½ tbsp dried basil, 2 tsp onion powder, 2 tsp sugar, 1 tsp cumin, 1 tsp paprika, 2 tsp kosher salt, 1 tsp pepper