In a large storage container, stir together citrus zest and juice, chopped rosemary and garlic, 4 cups chicken broth, 1/4 cup olive oil, 1 cup water, and 2 Tbsp salt.
Add turkey breast to marinate.
Marinate turkey for 24 hours (or a minimum of 1 hour up to 48 hours)
Pre-heat oven to 450 F.
Remove turkey from marinade and place in baking pan. Put in oven at 450 for 5 minutes.
Lower temperature to 400 F and continue to roast for ~1-1.5 hours or until internal temperature of 165F.
Notes
If using store bought broth, read all ingredients and avoid added sugars and other unnecessary fillers.