4 skinless boneless duck breast halves
1/4 cup soy sauce
1/4 cup fresh lime juice
1 tablespoon minced garlic
1 1/2 teaspoons curry powder
1 tablespoon minced peeled fresh ginger
1 small onion, sliced
1 cup canned low-salt chicken broth
Nonstick vegetable oil spray
Whisk first 5 ingredients to blend in 8 x 8 x 2-inch glass baking dish. Add duck breast and onion. Cover and let marinate at room temperature 1 hour or refrigerate up to 3 hours, turning duck breast occasionally.
Prepare barbecue. Remove duck breast from marinade. Strain marinade into medium saucepan; add broth. Boil about 14 minutes.
Meanwhile, spray duck breast with vegetable oil spray. Grill or broil until just cooked through, about 4 minutes per side. Transfer to platter.
Spoon sauce over duck breast and serve.