Make Ahead Tip: Cover and refrigerate the sauce (Steps 1-2) for up to 2 days.
Note: Port is a sweet fortified wine that provides depth of flavor in cooking. Look for it in your wine or liquor store.
Shopping tip: Boneless duck breasts range widely in weight, from about 1/2 to 1 pound, depending on the breed of duck. For this recipe, we recommend using smaller (about 1/2-pound) breasts--we prefer their milder flavor. Look for them near other poultry in the fresh or frozen specialty-meat section of large supermarkets or online at mapleleaffarms.com or dartagnan.com.
Tip: To oil a grill rack, oil a folded paper towel, hold it with tongs and rub it over the rack. (Do not use cooking spray on a hot grill.)
300 calories; protein 26.3g; carbohydrates 7.3g; dietary fiber 1g; sugars 5.2g; fat 15.6g; saturated fat 4.7g; cholesterol 94.6mg; vitamin a iu 124.2IU; vitamin c 24.8mg; folate 23.1mcg; calcium 22.7mg; iron 3.2mg; magnesium 28.5mg; potassium 423.2mg; sodium 518mg; thiamin 0.3mg.