So much flavor and only a few ingredients needed for this healthy grilled fish!
Process peaches and bbq sauce in a blender until smooth. Pour into a small saucepan and simmer until thickened some, about 10 minutes.
Season grouper with salt and heat a gas grill to medium-high. Or heat a cast iron grill pan over medium-high heat. Cook grouper for about 4 minutes per side, basting with sauce the last few minutes of cooking.
Serve with additional sauce.